simple past tense and past participle of fool around

(transitive) To prank on April Fool's Day.

A person who lives an admirably holy but eccentric life, at odds with conventional lifestyles.

Court jester; jester.

(idiomatic) to waste, squander

One who knowingly makes a decision or takes action that is to his/her own disadvantage.

Third-person singular simple present indicative form of act a fool

plural of fool's mate

(archaic, intransitive) To act foolishly.

Apium nodiflorum (synonym Helosciadium nodiflorum), a flowering plant native to western Europe, the leaves somewhat resembling those of watercress.