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1. A person who lacks good judgment
   - sap, muggins [Brit], tomfool, meathead, jughead [N. Amer], mampara [S.Africa], galah [Austral], charlie [Brit], juggins [Brit], moegoe [S.Africa], boofhead [Austral], drongo [Austral, NZ]
    
2. A person who is gullible and easy to take advantage of
   - chump, gull, mark [US], patsy [N. Amer], fall guy, sucker, soft touch, mug
    
3. A professional clown employed to entertain a king or nobleman in the Middle Ages
   - jester, motley fool

1. Make a fool or dupe of
   - gull, befool [archaic]
    
2. Spend frivolously and unwisely
   - fritter, frivol away, dissipate, shoot, fritter away, fool away
    
3. Fool or hoax
   "You can't fool me!"
   - gull, dupe, slang, befool [archaic], cod, put on, take in, put one over, put one across
    
4. Indulge in horseplay
   "The bored children were fooling about"
   - horse around, arse around [Brit, Cdn], fool around, arse about [Brit]

Derived forms: fooling, fools, fooled

See also: foolery

Type of: betray, buffoon, clown, consume, cozen, deceive, delude, droll [archaic], dupe, goof, goofball [N. Amer], jest, joke, lead astray, lead on, merry andrew [archaic], play, simple, simpleton, squander, victim, ware, waste

Encyclopedia: Fool Fool, The Stage Spirit