Bitches are the plural form for the word bitch which has a couple of commonly used definitions. The literal definition of the word bitch is a dog of the female gender, therefore the word bitches when defined in this sense would mean a group of dogs all of the female gender.
The more controversial meaning for the word bitches is that of a derogatory nature to women. Some call women with seemingly bad attitudes, and with seemingly little patience the word bitch. Bitches in the plural form would go to mean a group of women together with seemingly unpleasant attitudes, and little patience. Many women take offense to being called or labeled as bitches.
Bitches is also a word used in a lot of different styles of music, especially hip hop, to depict women, usually of a sleazy nature, who are seen or valued as worthless.
The word bitches continues to be rejected and accepted by different groups of people on what seems like a regular basis. For instance, some women agree that calling each other bitches is acceptable, but won’t accept anyone of the male gender calling them the same. When using the word bitches one must be very careful with whom he/she uses it as some may get offended, while others might not.