intransitive. To act foolishly or stupidly. Obsolete.

intransitive. To become or act like a fool; to become infatuated, foolishly fond, madly in love.

intransitive. To become silly or foolish; to be infatuated. Also transitive: to cause (a person) to become silly or foolish.

intransitive. To be or become foolish, infatuated, or mad; to act the fool. Scottish in later use.

intransitive. To become foolish.