I fucked your mother
To enjoy sexual intercourse with one's mother, see mother fucker.
I am a butt pirate! I fucked your mother!
I will fuck your mother
An aggressive term of endearment, that some dumb magazine claims is used in Spain, in place of "fuck you" or "I'm gonna fuck you up"
Jack: Dude, your a cocklocker
Nick: WHAT!?! AGGH! I WILL FUCK! YOUR! MOTHER!
(vicious nipple twisting ensues)
Nick: WHAT!?! AGGH! I WILL FUCK! YOUR! MOTHER!
(vicious nipple twisting ensues)