A Flinch Stone is someone who usualy flinched whe something is coming towards them. They will try to block their face or what ever part is trying to be hit in a quick, cowardly way. The name is a play on words and is supposed to sound like the Flint Stones, like the old cartoon. If someone flinched a lot you can say "how many flinch stone gummies did you eat today!?". (The gummies part is like flint stone vitamins.)
Person 1: Pretends to hit person 2*
Person 2: Flinches*
Person 1: "Ahhh, flinch stones right here! How may flinch stone vitamins did you take today?"
by Lamb sauce l o c a t e d January 31, 2021
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What you call a woman who bales on a hook up
Dude…. We’ve had plans to hook up for a week don’t be such a boobie flinch
by whyfyi August 22, 2023
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to get a a boner for something that maybe isn't right.
a penis flinch sort to say.

origin from "brucewillakers" pokemon stream.
*sees 2 sisters fight at the movies*
"ooh flinch"
by Bearlyman March 9, 2017
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Millwall slang for partaking in a big lunch pre session.
Proceedings officially start at 16:00. Have a blessed flinch would be my advice.
by Zumunuk September 25, 2021
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Giggling so hard that you end up moving a bit in your seat, about to fall off
PLZ I SAW MR. STUART WALK IN WITH HIS COSTUME AND I SWEAR MY ASS FLINCHED
by crocodile toes December 27, 2021
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