DOOFUS is a playable word

doofus Scrabble® Dictionary

noun
pl. doofuses
a stupid or foolish person
25 Playable Words can be made from "DOOFUS"
   2-Letter Words (6 found)
   3-Letter Words (11 found)
   4-Letter Words (6 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)