To go through relationships rapidly, to be promiscuous.

Derives from Chatroulette, where the F9 key brings another chat-partner up.
Dude 1: "I was thinking of trying to start a long-term devoted relationship with Maria."

Dude 1: "Not gonna happen. She straight F9s dudes."
by PostHaste February 23, 2010
Top Definition
A stupid acronym for "fine" used in online chatrooms and instant messengers. Phonetically you are saying fnine which sounds quite retarded so do not use it. "Fine" is a short enough, there is no need to condense it.
One: How are you?
Two: I'm f9
One: You're fnine? WTF does that mean retard
by OneLookCouldKill February 23, 2009
to move on, get over something. (particularly in reference to girls)

originally from the website chatroulette.com where F9 will skip you to the next person
- You're still thinking about her?

- Yeah..

- Dude, F9 that
by D burner February 07, 2010
if you dont like the way someone looks (another term for rejection)
i totally f9'd the shit out of them.
by josh mitchel May 01, 2010
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