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1. Someone who is a stupid incompetent fool
   - fathead [informal], goofball [N. Amer, informal], bozo [N. Amer, informal], jackass, goose [informal], cuckoo, zany
    
2. A person who amuses others by ridiculous behaviour
   - clown, buffoon, goofball [N. Amer, informal], merry andrew [archaic], droll [archaic]
    
3. An embarrassing mistake
   - blunder, blooper [N. Amer, informal], bloomer [informal], bungle, pratfall [informal], foul-up, flub [N. Amer, informal], botch, boner [N. Amer, informal], boo-boo [informal], boob [Brit, informal], blue [Austral, NZ, informal]

1. Commit a faux pas or a fault or make a serious mistake
   - drop the ball, sin, blunder, boob [informal]
    
2. Spend time not doing much; fool around
   - goof off [informal]

Derived forms: goofed, goofing, goofs

Type of: boofhead [Austral, informal], breach, break, charlie [Brit, informal], comedian, comic, diddy [Brit, informal], dill [Austral, NZ, informal], drongo [Austral, NZ, informal], error, fault, fool, funnyman, galah [Austral, informal], go against, infract, juggins [Brit, informal], jughead [N. Amer, informal], mampara [S.Africa, informal], meathead [informal], mistake, moegoe [S.Africa, informal], muggins [Brit, informal], nit [Brit, informal], offend, sap [N. Amer, informal], tomfool, transgress, violate

Encyclopedia: Goof