F--

Like the F-, the F-- is the worst grade possible. However, an F- can be given for an assignment that wasn't turned in or had little or no effort put into it. An F-- not only denotes an awful grade, but signals that the content, no matter how much work was put into it, was so awful that a mere F- wouldn't be painful enough for its recipient.

The boy was stunned when he received an F-- on his paper; he had stayed up all night working on it.

by Diggity Monkeez May 13, 2005

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:F

The emoticon used for people with no life a.k.a twilight fans.
it represents a vampire and 2 pointy teeth

twilight hater: OMG, twilight is so stupid
twilight lover: NOOO, ITS ESHAYZ!!! :F

by shillbilly November 26, 2009

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F&F

Funyons & Faggots, refers to the loser Dungeons and dragons (D&D)guys. who usually smoke pot and fuck each other. the pot making them want funyons, the sodomy makes them faggots.

Thos F&F guys are weird.

by duke Dynomite January 14, 2009

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