SLUBBER is a playable word

slubber Scrabble® Dictionary

verb
slubbered, slubbering, slubbers
to stain or dirty
81 Playable Words can be made from "SLUBBER"
   2-Letter Words (6 found)
   3-Letter Words (19 found)
   6-Letter Words (6 found)
   7-Letter Words (4 found)