Acting a damn fool. Bafoonery, coonery, etc.; often for laughs, sometimes unwittingly at your own expense.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

When someone (anyone) is doing something stupid, or completely foolish for no given reason.

Whether it’s giving an opinion that no one asked for on social media, or yelling at your kid in public

the art of foolishness that could be compared to the acts of a clown

an act of absolute clown shit. a very prestigious technique used to piss people off.

When apparently mature young ladies suddenly and ferociously act absurd.

Also see:

Immaturity
Ridiculous
Outrageous

Clownery is an extremely amazing person that has no limits with their jokes. They have a big heart. Clowneries are always very passionate, and make extremely dirty jokes. They contain a disease called, 'clown disease', that will make you start to make extremely dirty jokes. They always make the ones around them laugh.