bitchy /ˈbɪt͡ʃi/adjective 3noun 1forms 3 adjective3 •(informal) Spiteful or malevolent; catty; malicious; unpleasant.What she said—and what she did—was really bitchy. •(informal) Irritable.He’s really bitchy in the morning. •(informal, no longer used) Resembling or characteristic of a female dog.[…] Hatteraick is good in shape and well feathered, but bitchy in face; […] — 1882 noun1 •(informal, no longer used) Diminutive of bitch (“a female dog”). formsbitchies · bitchier · bitchiest