From Longman Dictionary of Contemporary Englishgross somebody ↔ out phrasal verbAmerican English spokenUNPLEASANT to make someone wish they had not seen or been told about something because it is so unpleasant SYN disgust His dirty fingernails really gross me out. —grossed out adjective → gross→ See Verb table
Examples from the Corpus
gross out• But Conover doesn't just want to chill us or gross us out.• He was trying to gross me out.• If you found the opening pitch a bit over the top, the follow-up would gross you out completely.• The truth is, he just grosses me out -- this is purely subjective.gross-outˈgross-out adjective [only before noun] informal a gross-out film or part of a film is intended to shock viewers and is very unpleasant to watch, for example because it involves waste from the body gross-out comedies 