Fossil dog

An old ass dog, usually from aged 10 and up the same dog you've had since you were in 1st grade.

"Damn how old is your dog it looks like a fossil"

"Yep its a fossil dog"

by meletonian April 13, 2024

fossil boner

When you’re so old you nutt ashes.

“That guy is so old, he has a fossil boner!”
So ....like when you’re going down on a girl but she’s so old she’s dry like the Mojave.

by Chjdkahsbd February 15, 2019

Fossil Whore

Someone, particularly a female, who dates or fucks really old people.

I walked in on my dad fucking my wife. What a fossil whore.

by Rozz May 25, 2018

fossil brain

you’re a dumbass

you’re a fossil brain

by bussybuttsayeee December 31, 2021

Fossil Fucker

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!

by Adolf Trump-Farage September 18, 2018

Fossil

The process of being turned to stone by medusa and ejaculating

Did you just get Fossil by medusa

by Mario with an Ak-47 March 13, 2021

Fossil hunting

When a man fists another man’s ass and pulls out treasure.

Dave went fossil hunting with TJ

by UltraGhastly November 25, 2018