kweff
To shoot at an opp
Mans backed the spinner and kweffed that neek boy
kweff
To thoroughly wash your hands for at least 20s to minimise the spread of covid-19.
Oi bruv, you'd better go kweff your hands, you don't wanna catch the 'vid!
Kweff
To beat someone up, or attack them harshly.
Bro, if you saw the way that I kweffed that opp boy yute, man wouldn't be surprised if his broski left him.