you were born from your mother's asshole, because her cunt was too busy being fucked by a dog
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>