GRUBBERS is a playable word

grubber Scrabble® Dictionary

noun
pl. grubbers
one that grubs
77 Playable Words can be made from "GRUBBERS"
   2-Letter Words (5 found)
   3-Letter Words (23 found)
   6-Letter Words (4 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)