SLUFFING is a playable word

sluff Scrabble® Dictionary

verb
sluffed, sluffing, sluffs
to discard a card or cards
97 Playable Words can be made from "SLUFFING"
   2-Letter Words (9 found)
   3-Letter Words (27 found)
   6-Letter Words (7 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)