What is Bitch ?
Bitch is (noun) 1. a female animal, especially a female dog They have two dogs a male and a bitch. The bitch has given birth to five puppies. 2. an unpleasant woman (offensive slang) That bitch is going round spreading rumours about me. (NOTE: [all senses] The plural is bitches.) ((verb)) to complain (slang) What’s she bitching about now?
source: Easier English, Student Dictionary Upper Intermediate Level