BIFFIES is a playable word

biffy Scrabble® Dictionary

noun
pl. biffies
a toilet
31 Playable Words can be made from "BIFFIES"
   2-Letter Words (8 found)
   3-Letter Words (11 found)
   4-Letter Words (8 found)
   5-Letter Words (3 found)
   7-Letter Words (1 found)