SCHLUMPING is a playable word

schlump Scrabble® Dictionary

verb
schlumped, schlumping, schlumps
to go about lazily or sloppily dressed
316 Playable Words can be made from "SCHLUMPING"
   2-Letter Words (17 found)
   8-Letter Words (7 found)
   9-Letter Words (1 found)
   10-Letter Words (1 found)