BUTTOCKS is a playable word

buttock Scrabble® Dictionary

noun
pl. buttocks
either of the two rounded parts of the rump
82 Playable Words can be made from "BUTTOCKS"
   2-Letter Words (7 found)
   3-Letter Words (23 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)