gangsta a: bruv i wanna bun a zoot  gangsta b: yeh i got some zoot here, take it  gangsta a: ah safe bruv, i owe ya one
when someone is smoking a joint, or weed, or marijuana, zoot means the joint itself
"gangsta a: bruv i wanna bun a zoot  gangsta b: yeh i got some zoot here, take it  gangsta a: ah safe bruv, i owe ya one" What is the definition of "bun a zoot"?