(1) A person who lacks good judgment
(1) She was destined to take part in some tomfool caper
(2) She was destined to take part in some tomfool caper
(3) Craning his neck like some tomfool who doesn't know quite what he's doing, he denies, even as he asserts, his mastery of the psychological dynamics of his art.
(4) Within minutes we were grinning like tomfools .
sap
muggins
saphead
fool