a person lacking in prudence, common sense, or understanding
a person who is victimized or made to appear foolish; a dupe
a jester employed by a royal or noble household
to deliberately behave in an amusingly or irritatingly foolish manner
to be wise or shrewd
to trick somebody
to make somebody look foolish
to behave in a way or do something that leads to embarrassment
used to express the opinion that somebody has done, is doing, or is proposing to do something foolish
More fool you for believing him, then!