simple past tense and past participle of act a fool

(colloquial, transitive) to trick/fool somebody

(archaic, simile) extremely fat; porky

The state, quality, or condition of being fool-hearted.

(forestry) Synonym of widow-maker (“dangerous broken tree limb”)

plural of fool killer

(chiefly Eastern Orthodoxy) A person, often associated with gifts of prophecy and insight, who publicly acts as if mad or stupid, but whose madness is seen as concealing an inner sanctity for the purpose of self-humiliation.

Synonym of Christian

Ellipsis of fools rush in where angels fear to tread.

Alternative form of play the fool