Spliff

Roadman / Drill slang. ‘Smoked’ is a slang term for killed. Spliff originally means marijuana cigarette; and what do you with spliffs? You smoke them, thus if someone gets put in a spliff, they get smoked, i.e., killed

“Jacob got put in a spliff last night, yeah he got caught lacking, they cheffed him up proper. Too many stabbings lately”