goofy

Short definition from Wiktionary

Adjective

1. 1
   silly, quirky
2. 2
   Riding with the right foot forward.

Noun

1. 1
   Synonym of goof.
2. 2
   One who rides with the right foot forward.

Proper noun

1. 1
   A Disney character: a slow-witted anthropomorphic dog with a goofy laugh.