bitch about (someone or something)
rude slang To complain about someone or something. This phrase is usually indicative of the listener's annoyance about the complaints. Oh boy, which dead president is grandpa bitching about today? If you hate your job so much, quit bitching about it and look for a new one!
bitch about someone or something
Inf. to complain about someone or something. (Use discretion with bitch, a word many consider coarse or vulgar.) You are always bitching about your girlfriend. Stop bitching about your job so much.