Fat End First - inserting the fat end of something into a bodily cavity. This is usually with the intent to cause pain. Anything with a fat end and a slender end can be used in this manner: carrots, baseball bats, and water bottles to name a few. Depending on the bodily cavity selected, this may result in difficulty in extracting the object. This acronym is generally used as a verb to describe the action of the penetration.
Joe just fef'd me with a carrot.
Go fef yourself with a baseball bat.
I just fef'd Caleb with a bowling pin.
Go fef yourself with a baseball bat.
I just fef'd Caleb with a bowling pin.
by RedWater June 30, 2009
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<Xenocide> fef
<Neodymium> Xenocide: But that's oliciv's word!
<Neodymium> And while I'm here, TSIF
<Xenocide> fef
<Neodymium> Xenocide: But that's oliciv's word!
<Neodymium> And while I'm here, TSIF
by Pwnr May 4, 2004
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