WordWeb Online

1. A person who lacks good judgment
   - sap [N. Amer, informal], muggins [Brit, informal], tomfool, jughead [N. Amer, informal], meathead [informal], diddy [Brit, informal], galah [Austral, informal], mampara [S.Africa, informal], juggins [Brit, informal], drongo [Austral, NZ, informal], charlie [Brit, informal], boofhead [Austral, informal], dill [Austral, NZ, informal], moegoe [S.Africa, informal], nit [Brit, informal]
    
2. A person who is gullible and easy to take advantage of
   - chump [informal], gull [informal], mark [US, informal], patsy [N. Amer, informal], fall guy [N. Amer, informal], sucker [informal], soft touch, mug [informal]
    
3. A professional clown employed to entertain a king or nobleman in the Middle Ages
   - jester, motley fool
    
4. A cold dessert made of puréed fruit mixed with whipped cream (and usually sugar)

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 [archaic, informal], befool [archaic], cod [Brit, informal], put on, take in, put one over [informal], put one across [informal]
    
4. Behave in a foolish, fun way; indulge in horseplay
   "The bored children were fooling about"; "Enough fooling around--let's get back to work!";
   - horse around, arse around [Brit, Cdn, informal], fool around, muck around [Brit, informal], muck about [Brit, informal], arse about [Brit, Cdn, informal], kid around [informal], screw around [informal]

Derived forms: fooling, fools, fooled

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

Encyclopedia: Fool, I'm a Woman