def 1 : someone who has failed so much in their high school that all the students of their batch has completed studies and yet they r still studying

def 2: oldest students n campus
example : girl : eewoo!!! who is he ...he looks too old to be a student

boy : oh yeah hes a living fossil
by cindmon April 01, 2010
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Having to reluctantly sit with an elderly relative,whilst their normal family/carer has a break
'coming out saturday nite jim?'
'nope, gotta go fossil watching'
by geemeister November 18, 2004
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someone who fucks older women or men 20 yrs or older than them.
jennifer, Why are you fucking my dad?
Kim, Im a fossil fucker and I want to thats why.
by funny chick February 25, 2009
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when a kid shits their pants and then sits down, pressing it between their ass-crack and the chair creating a casting of their crack
my son shit his pants at the park and then went down the slide, creating a cheek fossil
by cosmic charlie November 29, 2012
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When a person goes number two in a hot plastic outhouse that is infested with flies. The flies get trapped between the static layer of dung and the incoming layer of butter.
Wow! That Taco Bell tore me up! I must have made at least a dozen fly fossils in that plastic crapper!
by Redneckdanger July 03, 2018
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An unused condom that has been tucked away in a wallet for so long that it's actually fused with the leather, and must be carbon dated to determine the era in which it was intended for use. A wallet fossil should not be discarded as it may be worth money on the collector's market, or at least holds value as nostalgia for the days you still held out some hope for pussy.
"The date had not gone well, and Laura felt an awesome wave of relief when their waiter finally appeared with the check. As Chad took out his Harley-Davidson wallet to pay, Laura noticed a scuffy ring-shaped extrusion on it that can only be produced by a long forgotten wallet fossil. Suddenly it all made sense to her."
by PaulAllensCard January 30, 2015
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A gay guy from the mighty boosh who works in a zoo. He takes skool kids on tours of the zooniverse. he is scared of floating cups nd think pocket cups rock. he has a talk box which he makes howard moon speak into so he can remember the names of the animals. He doesn't like cricket!!! he rocks lol
(dancing to song 'i don't like cricket'.music stops)
Bob Fossil: and thats why i don't like cricket.

!!!
by liisy April 18, 2008
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