6.4 Informal English and Idioms

The Language Nobody Teaches You

Open any English textbook and you will find grammatically perfect sentences, polished vocabulary, and carefully structured dialogues. Now listen to actual English speakers in a cafe, on a bus, or in a YouTube video. The gap can be enormous. Real, everyday English is full of slang, idioms, phrasal verbs, and colloquial expressions that textbooks rarely cover but that you absolutely need to understand.

When someone tells you to "hang in there," they are not suggesting you cling to a physical object. When a friend says they will "look into it," they are not physically peering inside something. When a British person says something is "not bad," they often mean it is quite good. This is the world of informal English: colourful, creative, sometimes baffling, and absolutely essential for understanding how the language is actually used.

In this chapter, we will explore slang, phrasal verbs, colloquialisms, and the concept of register. You will learn not just what these expressions mean but, crucially, when and where different levels of formality are appropriate. Knowing informal English is important; knowing when to use it is even more important.

Slang, Colloquialisms, and Phrasal Verbs

Slang is highly informal language that often belongs to specific groups, ages, or subcultures. It changes rapidly. The slang of the 1990s sounds dated today, and much of today's slang will sound equally dated in ten years. Words like "lit" (exciting), "ghosting" (cutting off contact without explanation), and "salty" (bitter or upset) are current slang that may or may not survive.

Slang serves important social functions. It marks belonging to a group. Teenagers develop their own slang partly to create a shared language that sets them apart from adults. Internet communities develop slang that identifies insiders. Slang is creative, playful, and often witty. It is the laboratory where new language is tested before some of it eventually enters mainstream use. "Cool" was once slang; now it is standard English.

Colloquialisms are informal expressions that are more widely used and longer-lasting than slang. "Gonna" (going to), "wanna" (want to), "kinda" (kind of), and "gotta" (got to) are colloquial forms used in casual speech by virtually all English speakers. "No worries" (it is fine), "hang out" (spend time casually), and "catch up" (update each other on news) are colloquial phrases that are perfectly normal in informal conversation.

Phrasal verbs are one of the trickiest aspects of English for non-native speakers. They consist of a verb plus one or more particles (prepositions or adverbs) that together create a meaning different from the individual words. "Give up" does not mean give in an upward direction; it means surrender or stop trying. "Put up with" does not involve putting anything anywhere; it means tolerate. "Come across" does not mean come across a bridge; it means find by chance.

Here is a small selection of essential phrasal verbs:
- Look up — search for information
- Turn down — reject or refuse
- Bring up — mention or raise a topic
- Work out — exercise, or find a solution
- Run out of — have no more left
- Figure out — understand or solve
- Get along with — have a good relationship with
- Put off — postpone or delay

The challenge is that many phrasal verbs have multiple meanings depending on context. "Take off" can mean remove clothing, become successful, or an aeroplane leaving the ground. Context always determines meaning.

Idioms: When Language Goes Figurative

An idiom is a phrase whose meaning cannot be understood from the individual words. "It's raining cats and dogs" has nothing to do with animals falling from the sky; it means it is raining heavily. "Break a leg" does not express a wish for injury; it means "good luck." "The ball is in your court" has nothing to do with tennis (necessarily); it means the decision is now yours.

English has thousands of idioms, and they appear everywhere: in conversation, in newspapers, in political speeches, and in literature. Understanding them is essential for comprehension, but learning them requires exposure and practice because there is no logical way to deduce their meaning from their components.

Here are some common idioms that appear frequently:
- Bite the bullet — endure something painful or difficult with courage
- Cost an arm and a leg — be very expensive
- Hit the nail on the head — be exactly right
- Under the weather — feeling ill
- Once in a blue moon — very rarely
- Piece of cake — very easy
- Let the cat out of the bag — reveal a secret
- Burn the midnight oil — work late into the night

Many idioms have fascinating origins. "Break a leg" may come from the superstition that wishing someone good luck directly would bring bad luck. "Let the cat out of the bag" may originate from a medieval market fraud where a cat was sold in a bag instead of a more valuable pig.

Register: Choosing the Right Level

Register is the level of formality you use in language, and choosing the right register for the situation is one of the most important language skills you can develop.

Formal register is used in academic writing, official documents, business correspondence, and professional settings. It uses complete sentences, avoids contractions ("do not" rather than "don't"), employs sophisticated vocabulary, and maintains an impersonal tone. "We wish to inform you that your application has been successful" is formal register.

Informal register is used with friends, family, and in casual settings. It uses contractions, colloquialisms, slang, and a personal tone. "Hey, you got in! Awesome!" is informal register. Both sentences convey the same information, but they create completely different impressions.

Neutral register sits between the two and is appropriate for most everyday communication. News reporting, textbooks, and general conversation with people you do not know well typically use neutral register.

The skill is not just knowing these registers but knowing when to switch between them. Writing a job application in slang would be disastrous. Speaking to a close friend in formal register would be strange and distancing. The context, your audience, your purpose, and the medium, determines which register is appropriate.

In the English exam, you should generally use formal or neutral register for written tasks, unless the task specifically asks for informal writing (like a personal letter or a dialogue). For oral exams, a slightly less formal but still respectful and articulate register is appropriate.

A common mistake for learners is mixing registers inappropriately. Starting a formal essay with "Climate change is, like, a really big deal" or ending a casual text message with "I look forward to your earliest convenience in this matter" both sound wrong because they use the wrong register for the context. Developing sensitivity to register is a mark of genuine language proficiency.

Summary

Informal English is the language of everyday life, and understanding it is essential.

Slang is highly informal, group-specific, and rapidly changing. Colloquialisms are more widely used informal expressions. Phrasal verbs combine verbs with particles to create new meanings and are extremely common in English.

Idioms are phrases whose meaning cannot be deduced from individual words. They must be learned through exposure and practice. English has thousands of idioms used in all types of communication.

Register is the level of formality. Formal, neutral, and informal registers are appropriate in different contexts. Choosing the right register for the situation, and maintaining consistency, is a mark of genuine language proficiency. In exams, default to formal or neutral unless told otherwise.