Gunk
'gunk' is the definition.
(I know that gunk can be written as slime)
This is all the clue.
(Other definitions for slime that I've seen before include "Slippery mud; slug trail" , "Goo" , "Nasty slippery stuff" , "Moist slippery stuff" , "Gooey seeping stuff" .)
'gunk' is the definition.
(I know that gunk can be written as goop)
This is the entire clue.
'gunk' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for crud that I've seen before include "Disgustingly foul substance" , "That's disgusting" , "radioactive waste" , "Disgusting waste matter" , "Unpleasant substance" .)
'gunk' is the definition.
(I know that gunk can be written as muck)
This is all the clue.
(Other definitions for muck that I've seen before include "Dirt, manure" , "Moist farmyard dung" , "Farmyard manure" , "(Spread) manure" , "Wet clay, mire" .)
'gunk' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for glop that I've seen is " Bland mushy food".)
'gunk' is the definition.
(I know that gunk can be written as sludge)
This is the entire clue.
(Other definitions for sludge that I've seen before include "Gloop, gunk, muck" , "Muddy sediment" , "Mire - sewage" , "'Muck, slime (6)'" , "Ooze" .)