What is your favourite slang or local word?

Even though we use English here on Fluther I am sure that we all have words that are slang or local dialect that we use in day to day life, but do not put on here due to thinking that others will not understand it.

So in order to show the diversity of the English language, what are some examples of slangs or local words that you use and their meaning?

I’ll give you a few Scottish examples.

dreich = a descriptive term for those days where it is cold and damp.
wabit = tired (more wawwbit and not Elmer Fudd saying rabbit)

Over to you.