meaning your mothers husband, boyfriend or your father.
it can be used to insult somebody and can also be used to answer a question concerning your busniess
kevon: where you get tha old slippers from boi?
brian: i get it from yuh mudda man
Basically its your mother's boyfriend, husband or your father ...
Marco : is way u get them nasty clothes from boi ??
Josh : from yuh Mudda Man .