Going down on a woman while she is on her period; coming up Fred Flintstone faced.
His face was two-toned like Fred Flintstone after that unfortunate encounter.
by Gison April 13, 2010
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THIS MEANS THAT SOMEONE IS REQUESTING TO BE LAID BY SOMEONE ELSE.
GIRL: "SO WHAT DO YOU WANT TO DO TONIGHT"

BOY: "I'M NO FRED FLINTSTONE BUT I CAN MAKE YOUR BED ROCK"
by Hullo, have a goode one January 28, 2010
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When you lose control of your vehicle and crash into heavy bushes, thickets, forests, brush. Crashing into and through any heavy vegetation which might appear for a moment through the windshield to be similar to an organic form of the mechanical equipment that bushes cars at a car wash.
He was racing another car outside of town, lost control and flintstone carwash.
by b4ctom1 August 26, 2023
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A term used to describe a soccer ball that is over inflated, and furthermore the act of heading such a ball. Typically dreaded and quite painful on behalf of the recipient.
Friend 1: "That ball's mad hard!"
Friend 2: "Yep, its a flintstone."
by mf21 November 9, 2017
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The act of shoving your head up someones rectum whilst having sex.
Dian- Yea chad he just flipped me over and just started flintstoning me.
Susan- Oh my god are you okay that must've hurt you're poor ass.
Dian- You haven't lived till hes done that to you.
by analboy 99 November 12, 2017
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Being in the middle of a task at work and just dropping it and leaving the minute your shift ends.

(In the first 10 seconds of the Flintstones intro, Fred is busy lifting a rock out of the quarry, but as soon as the whistle blows he's out of the quarry and into the car)
"Never give him a task that takes more than 15 minutes at 4:45, because he'll be flintstoning on out of here at 5:00."
by Kayurastar January 27, 2017
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