A behaviour of acting foolish or childish with a slight sense of humour behind it .mostly common around teens and millennials.
Jasmine: “That’s a lot of clownassery going on “
Emma : what ?! We just talking
Dre: yoooo I spoke to this girl last night and I told her I’d do anything for her at any time broo
Jackson: “broo you’re clownassery is on another level “