A creative cuss word, better than mother fucker and way better than mother bitch. So vulgar while disgracing the name of mother. Almost like telling someone you fucked their mother's asshole last night but in a more nonchalant manner.
Crystal: I just wanted to let you know that you have sharted yourself while on the dance floor.
Becca: Seriously don't think you you're being a mother asshole telling me that? You could have waited until we were outside.
Becca: Seriously don't think you you're being a mother asshole telling me that? You could have waited until we were outside.
by tsunbot September 24, 2011
perhaps the most offensive and all-encompasing insult ever conceived. either Portugese or Afrikaans in origin.
dude1: go on, say "you were born from your mother's asshole, because her cunt was too busy being fucked by a dog"
dude2: you were born from your mother's assho <dude1 punches 2 in face>
dude2: you were born from your mother's assho <dude1 punches 2 in face>
by b4stard November 09, 2005