knacks

abbreviation
short for 'knackered', this word is used in England to describe something that is utterly pants or lame.

Mate: Yo, bruv look at my man's fit. It's so dead!
Me: Yeah, man. Shit is knacks

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Bird

Jail time, or a jail sentence.
From Cockney rhyming slang

birdlime = jail time

Me: "Did you hear the knicked my man?"
Bredrin: "Really?"
Me: "Yeah bro. He's doing bird right now"

That geezer got a bird

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