bitch bag /ˈbɪt͡ʃbæɡ/ noun2 •(vulgar, offensive) A term of abuse, implying that someone is bitchy.Top 10 List of Assholes I’ve Cared For: […] Religious bitchbags […] — 2023 •(vulgar, offensive) A bag sized for a party woman to contain her provisions of a licentious night, a standard back pack or weekender.My bitch bag got Chanel on it We up in Saks by the Prada — 2019 formsbitch bags