What is Mothersucker?
1.
Motherfucker.
Dave didn't want to embarass his grandmother so he said, " Pass the ketchup, mothersucker".
2.
a sucker of mothers.
I'll kick your ass, you stupid mothersucker!
See
3.
A person or persons who have an obsession or addiction with sucking on their mother's errogeneous zones; i.e. nipples, vaginal lips, etc.
4.
one who is obsessed with sucking his mother's toes and writes erotica about it
jubal harshaw is a mothersucker
