Top definition
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
Get the mug
Get a fossil fucker mug for your mate Zora.
2
A younger male who purposely 'hits on' older ladies (usually aged over 40 and single) for the purpose of sex.
Look at that guy hitting on that old woman - man, bet he's a fossil fucker!
via giphy
by Adolf Trump-Farage September 18, 2018
Get the mug
Get a Fossil Fucker mug for your Facebook friend Larisa.