sludgy (?.)
- barfy
- crappy
- dirty
- disgusting
- fecal
- feculent
- fetid
- filthy
- flyblown
- foul
- gloppy
- gunky
- icky
- maggoty
- malodorous
- mephitic
- miry
- mucky
- muddy
- nasty
- nauseating
- odious
- oozy
- ordurous
- plashy
- puky
- putrid
- rank
- repulsive
- rotten
- scabby
- scummy
- scurfy
- shitty
- slabby
- slimy
- slobby
- sloppy
- sloshy
- sloughy
- slushy
- soft
- splashy
- sposhy
- squashy
- squelchy
- squishy
- turbid
- vile
- vomity
- wormy
- yecchy