WordWeb Online

1. Someone who is a stupid incompetent fool
   - fathead [informal], goof [informal], bozo [N. Amer, informal], jackass, goose [informal], cuckoo, zany
    
2. A person who amuses others by ridiculous behavior
   - clown, buffoon, goof [informal], merry andrew [archaic], droll [archaic]

Derived forms: goofballs

Type of: boofhead [Austral, informal], charlie [Brit, informal], comedian, comic, diddy [Brit, informal], dill [Austral, NZ, informal], drongo [Austral, NZ, informal], fool, funnyman, galah [Austral, informal], juggins [Brit, informal], jughead [N. Amer, informal], mampara [S.Africa, informal], meathead [informal], moegoe [S.Africa, informal], muggins [Brit, informal], nit [Brit, informal], sap [N. Amer, informal], tomfool

Encyclopedia: Goofball