BACKFAT is a playable word

backfat Scrabble® Dictionary

noun
pl. backfats
a layer of fat between the skin and muscle in animals
33 Playable Words can be made from "BACKFAT"
   2-Letter Words (7 found)
   3-Letter Words (15 found)
   4-Letter Words (6 found)
   5-Letter Words (3 found)
   7-Letter Words (2 found)