SLUDGES is a playable word

sludge Scrabble® Dictionary

verb
sludged, sludging, sludges
to form sludge (a muddy mass or sediment)
74 Playable Words can be made from "SLUDGES"
   2-Letter Words (5 found)
   3-Letter Words (19 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)