an emoticon representing frustration or indicating the user has fangs and is willing to use them on other users who piss him/her/it off

also indicates hunger, or willingness to use teeth for other sundry purposes
<usera> Fuck this shit.
* usera gives up on homework :F
<userb> Now let's cyber. :D
<usera> :F Get out the chocolate sauce.
<userb> :F Mmm, choco~
by Firebottle January 07, 2005
:F or :f

Boy: :f Wassup?
Girl: ;] Nothin.
Boy: :F Oh really?
by Wistful August 31, 2005
Biting lips emoticon
<you> Man, I'm so anxious about the math exam tomorrow...
<guy> Dude, the exam was today
<you> Wtf!? It's Tuesday
<guy> Nope, it's wednesday...
<you> omg ur right :O :F
by Basement Monkey June 21, 2009
Emotion icon defining hunger or drooling.
"What? Your eating pizza? :F
by some person January 05, 2005
Emotion made to resemble a drooling person, or the popular "dat ass" face picture.
"Check out my abs guys, been workin' out!"

"OMG that's so hot :F "
by Mr. Animus May 08, 2013
An emoticon derived from the ubiquitous :P, depicting a :P that went too far, and got bit in haste.
Kabutar: Hey man! How's my iPod?
Kum Aar: Oh, it's sleeping with the fishes
Kum Aar: :F
by Kum Aar October 05, 2010
Bucktoothed smile with one tooth missing. Replacement for commonly used :) with hint of stupidity.
A: Heard you had some bike accident last week?
B: Yep :F
by rotator April 22, 2013
The emoticon, which is a fun and revolutionary, temporary replacement for the famous emotion :P

This symbol represent a lizards tongue, rather than a human one. An can often be more fun then the parent symbol.

Especially usefull when talking about lizards or animals.
Jonty: So how big is your Lizard Ms Thomas ?
Ms Thomas: 5 metres

Jonty: Oh, thats tiny even mine is bigger :F
Ms thomas: What can i say? The lizard is still growing :F
by JoNty September 18, 2012

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