Intoxicated man (almost never a woman) who touches or pats the bottoms of female nightclub patrons. Arse pirates nearly always dance casually in a swaying motion to conceal their intentions. Example: Watch out, there's an arse pirate behind you. OR I just got caught by an arse pirate. OR This place is full of arse pirates.
ARSE PIRATE
Meaning of ARSE PIRATE in English
Slang English vocab. Английский сленговый словарь. 2012