"I fucked your mom" is an insult used to scare away 3 year olds on Halo:Reach away.
Kid 1: YOU KNOW WHAT?! I HATE YOU!
Kid 2: OH YEAH?! I fucked your mom.
Kid 1: zamn
on november 27th, along with beat a furry day, there is also hate fuck your ex-friend day. right after you participate in beat a furry day, you have to participate in hate fuck your ex-friend day that night.
Brodie: We're going to participate in Hate Fuck your Ex-friend day... TONIGHT!
Gavin: T-T-T-T-T-Tonight??