GUNK
sludge, slime, goo, goop, gook, guck, gunk, muck, ooze
(noun) any thick, viscous matter
Source: WordNet® 3.1
Etymology
Noun
gunk (countable and uncountable, plural gunks)
(uncountable, informal) dirt or grime; any vague or unknown substance
(uncountable) A subculture of 21st century American males, combining elements of modern gothic culture with punk rock.
(countable) A member of the gunk subculture.
Synonyms
• goo
• goop
• gunge
• muck
• grime
Verb
gunk (third-person singular simple present gunks, present participle gunking, simple past and past participle gunked)
To soil or make dirty
Anagrams
• !Kung, Kung, ǃKung
Source: Wiktionary