flynnstone 

from the irish flione stoneadh: the greatest user of the stone known to the irish. He could hit a sabre tooth sheep from five hundred yards with a pebble from a beach, known for his sex appeal and his numerous sexual partners

you did a flynnstone on that one: screwing a girl without her regretting the moment

flynnstone by stone,flynn October 6, 2003

fleenstones 

A meme-ish way of saying "the Flintstones." Usually used in reference to SiivaGunner, Vinesauce Joel, or anything else related to 7 GRAND DAD. Phonetic spelling of Joel saying "Flintstones?" in a strange and humorous way due to his accent.

Joel: GRAND DAD? FLEENSTONES?! *annoyed groan*

fleenstones by MushroomTheEpic July 1, 2017

Fred Flintstone 

When a guy with a huge dick pulls away while his girl is on her knees blowing him and he starts swinging his big prized cock across her head, just like a prehistoric caveman would whack his woman on her head with his caveman club.

I Fred Flintstoned my bitch on her head last night...yabba dabba doo.

After I pulled a Fred Flintstone on my chick, she saw stars all night long.

Lucky my girl got no bruises on her head after I Fred Flintstoned her or I be arrested for domestic violence. shit.

Fred Flintstone by king_muscat April 17, 2010

flintstone's gummies 

literally the best fucking gummies to ever fucking exist

bruh Flintstone's gummies smack

flintstone's gummies by thefuckingshit.com June 25, 2020

Mr. Flintstone 

One who makes your bed rock, i.e. they are amazing in bed

Girl: I hear you're great in bed
Guy: This is true, my room is the G-spot, call me Mr. Flintstone, I can make your bedrock.
Girl: Let's fuck....right now

Mr. Flintstone by theislamicbomb456 March 29, 2010

Flintstone feet

Large, thick, wide feet that look even bigger when a person is barefoot or wearing sandals. feet, foot, Flintstones, cartoon, bigfoot, sasquatch feet

Did you see that guy's Flintstone feet, he must have his shoes made.

Flintstone feet by joecoolthefool May 19, 2016

flintstones

1. A Hanna Barbera cartoon that ran from 1960 to 1966 that portrays life during the stone age.
2. Vitamins that are tasty and designed for children, but many adults take them too. They are chewable and have mixed reviews, some love them and some hate them.

-I was watching Flintstones reruns all day long.
-I'm a vegetarian so I take filntones vitamins every morning. Yum! The orange ones are the best!

flintstones by LizzieVdK May 2, 2006