An explicit generalised name for something (be it person, place, object or otherwise) you can't remember the actual name of at the moment in time, during a conversation.
(Object)
Dave, pass me the uh... uhm... Fuckslice.
(Place)
Yeah, we took a long trip to... Fuckslice? - off of the main road...
(Person)
Oh I remember him, his name was... John... Fuckslice.
(n.)One who you dislike enough to maliciously slap while engaging in intercourse, yet like enough to engage in intercourse with.
(v.) The act of slapping someone who your are engaged in intercourse with, for doijng something incredibly stupid in bed.
You're having sex...*insert various sounds of intercourse hear...he/she does something like biting, or inserting anything into somewhere it shouldn't be, and you slap the shit out of them, only to continue intercourse, then leave and never talk to them, that person, is a fuckslap(n.), what you did to them, is fuckslap(v.) them.
Derived from skateboarding. A 'fuckflip' is a move a where you skate as fast as you can, towards another person, slamming yourself down on the skateboard and kicking the board out from under you at the target's crotch, head, or chest. This will cause immense pain for either a male of female target.
"tell her you'll bust a fuckflip and hit the wheels into her skull..."
or
"That kid is such a douche bag we should go give him a fuckflip.
Not with my new deck man!"