Green’s Dictionary of Slang

zoot n.²

(UK black) a cannabis cigarette.

1999		(con. 1979–80) A. Wheatle Brixton Rock (2004) 25: Just wrap up another zoot and [...] you’d better give Sharon a few pulls.
2001		(con. 1981) A. Wheatle East of Acre Lane 131: Biscuit [...] told them he would meet them outside to smoke his zoot.
2008		A. Wheatle Dirty South 31: Everton always had a zoot hanging from his mouth.
2016		Guardian Guide 21 May 11/2: I was on the balcony [...] smoking a zoot.
2020		G. Krauze What They Was 28: There was always a zoot packed with highgrade waiting for me.

In derivatives

zooted (adj.)

(US black/drugs) intoxicated by a drug.

1991

Cooper & Wright New Jack City [film script] Copped me a bag of that Red Devil angel dust. I got so zooted.