“Someone just got cheffed up”
“Oi pussy blud wanna get cheffed”
“Naaaa word on the street is dat opps are packing skengs, let’s cut, don’t wanna get cheffed out here”
Having smoked some really great weed (choof), you are now really stoned. Sounds like "chuffed" which is great because smoking weed always makes people really happy.