The term son of a bitch or son-of-a-bitch (often pronounced "sumbitch" in the Southern United States, and frequently euphemised to s.o.b.) is a form of profanity usually used to refer to an individual who is nasty, rude or otherwise offensive. Regional definitions vary from source to source. ... A euphemism is an expression intended by the speaker to be less offensive, disturbing, or troubling to the listener than the word or phrase it replaces, or in the case of doublespeak to make it less troublesome for the speaker. ... Profanity is a word choice or usage which its audience considers to be offensive. ...

It is slightly different from the word it derives from, bitch, in that the word "bitch" can be used non-pejoratively to refer to a female dog (and the term is still used in that sense by dog breeders) while this term is usually only pejoratively used, i.e. it is used in context to mean an insult. It also is used as an exclamation or in an exclamative pretext. Look up Bitch in Wiktionary, the free dictionary A bitch is a female dog or other member of the canidae family. ... Look up pejorative on Wiktionary, the free dictionary. ... An insult is a statement or action which affronts or demeans someone. ...

The phrase can also be used as a indication of sympathy towards an individual such as "You poor son of a bitch."

This phrase can also be used as a abusive comment. "Your Dad beat your mom like a son-of-a-bitch."

The phrase implies that one's mother is a bitch.

This phrase can also be used as an expression of difficulty. "That test is a son of a bitch."