- Combination of gross and yuck with an extra emphatic tone of one of the best four-letter words.
Sputum is gruck!
Dictionary of american slang with examples. .
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band-aid\ gruck — The grey black sticky residue that forms around the perimeter of a band aid that s been stuck to the skin for too long. Band aid gruck often lingers after the band aid has been removed, and it indicates where the band aid once resided. I have… … Dictionary of american slang