Verb
(idiomatic) To behave in a foolish or comical manner.
(idiomatic) To pretend/feign ignorance.
Source: en.wiktionary.orgAt times discretion should be thrown aside, and with the foolish we should play the fool. Menander
No man is so much a fool as not to have wit enough sometimes to be a knave; nor any so cunning a knave as not to have the weakness sometimes to play the fool. George Savile, 1st Marquess of Halifax
It's shameful to spot a lie and not to name it, shameful to name it and then to shut your eyes, shameful to call a funeral a wedding and play the fool at funerals besides. Andrey Voznesensky
He is not a wise man who cannot play the fool on occasion. Italian Proverb
In life, each of us must sometimes play the fool. Yiddish Proverb
It takes great wisdom to play the fool. English Proverb