It depends on the type of speech. In an informal speech, slang is fine; in a formal speech, you should avoid slang.
You should avoid using slang in formal writing, professional environments, academic settings, and when communicating with individuals who may not understand the slang terms being used. It's important to choose language that is clear, respectful, and appropriate for the context.
informal
When writing a dialogue, you would be most likely to use slang in casual or informal speech. Slang can help make the dialogue sound more authentic and reflect the character's personality or background. It is often used in conversations between friends, family members, or in informal settings.
Not that I can see. He did use a lot of idioms and metaphors, though.
People usually curse to express strong emotion, mostly anger and frustration with a person, an object, or a circumstance. People use slang usually in order to fit in with a particular group. Slang is usually used in casual or humorous speech. It would not be appropriate to use slang in formal contexts such as in the business or professional world, at school, or in religious settings such as in church.
Americans love speech. Since we founded the country, we have loved speech-making and the sound of words. Americans just like using idioms and slang to make speech more colorful and interesting.
Slang refers to non-standard vocabulary and expressions that are typically used within specific social groups or subcultures. Colloquial language refers to informal, everyday speech that is more relaxed and conversational than formal language. Informal language encompasses both slang and colloquial language and is characterized by a less rigid or structured style compared to formal language.
Slang is typically more appropriate for casual writing as it can be considered too informal for formal writing. However, it can be used in moderation for emphasis or to connect with a specific audience in both casual and informal writing styles, depending on the context.
Colloquial language.
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Casual conversations with friends or in informal settings, such as chatting, texting, or social media.
It is slang in only the spoken word. It cannot be used in proper English. As slang, and has to be translated into English before it can be categorized: it means "what will . . . ".What is an interrogative pronoun.Will is part of the future tense of a verb, as in will go, will find.You should always use "What will" in school, not the slang.