Found 2 items, similar to guck.
English → English (WordNet) Definition: guck guck n : any thick messy substance [syn: sludge, slime, goo, gook, gunk, muck, ooze]
English → English (gcide) Definition: guck guck \guck\ n. 1. any thick messy substance. Syn: goo, gook, gunk, muck, ooze, sludge, slime. [WordNet 1.5]