Mad for it. Manc slang hits different, shaped by indie music, football, and a city that never takes itself too seriously. If someone calls you "our kid," you're basically family.
"Wicked I've seen used up north primarily and it is a word used for emphasis like you would use very or really. For example, I'm wicked tired. Can you hurry up?"
"Clapped, it's a synonym for chopped, basically something or someone ugly, bad, or whatever. Basically unattractive. An example would be, oof, you're gonna wear that? That fit is clapped."
"Dece. Abbreviation of decent. However, this usually means more than decent. It is said to describe something as above average or good. Example. I never knew Jan could swim like that. She is awesome. I know. I told you she was dece."
"Peak. In a stricter sense, it is a word to refer to something at the peak of its domain, the best of the best, but more current usage means that people mainly use it just to say that something is really, really unfortunate. Dude, did you see that new movie that came out, Project Hail Mary? Oh my god, yes, that shit was so peak!"