My friend mom is mentally abusing her by callin her names & blaming her 4 every little thing wha do i do?

MIND YOUR OWN BUSINESS! What goes on between a mother and her daughter is their business, and if your friend is not grown up enough to fend for her self she may have some real social problems, again it is still none of your business. Does your friend still live in her mother's house? If so I will point out real fast that he who has the gold makes the rules. If you friend is old enough to be on her own have her move in with you,....I mean you are a grown up and so is she,.......or is she?