noun

• (dated or specialised, dog-breeding) A female dog or other canine, particularly a recent mother.
  "My bitch just had puppies; they're so cute!"
• (archaic, offensive) A promiscuous woman, slut, whore.
• (slang, vulgar, offensive, often sexist) A despicable or disagreeable, aggressive person, usually a woman.
  "Near-synonyms: cunt (vulgar, offensive); see also Thesaurus:jerk"
• (vulgar, offensive, slang) A woman.
  "Biggie, remember when I used to let you sleep on the couch, and beg the bitch to let you sleep in the house?"

verb

• (vulgar, intransitive) To behave or act as a bitch; especially, to complain excessively.
• (vulgar, intransitive) To complain or criticize spitefully, often for the sake of complaining rather than in order to have the problem corrected.
  "All you ever do is bitch about the food I cook for you!"
• (vulgar, transitive) To spoil, to ruin.
  "'You're a Franco-maniac…You're thought to be a French agent…That's what's bitching your career!'"