On December 13th. Your special someone is obligated to send a booty/thigh pic.
You wanna send

I might

Good because its December 13th:
National booty/thigh pic day.

You are obligated

okay then
by Segregated Rooster December 12, 2021
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It’s National Thigh Day ladies! It’s December 7th so you gotta show the boys your thighs!
“Today’s national thigh day so I have to send some thigh pics
by peytonmanning18 December 7, 2020
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This basically means grab a girls thigh day! Even if she is standing up, place your hand on her thigh!
Ryan: * puts hand on girls thigh *
Becca: What are you doing?!
Ryan: it’s national grab a thigh day!
by Double Wammie September 28, 2022
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On June 5 go out and grab some thighs! It doesn’t matter if they are thick or thin, grab-em. Join this day to celebrate all the thighs that are on people’s legs by grabbing them, squeezing them, or even just slapping them! You can even tell everyone about it, then you can grab their thigh. You could also grab any random persons thighs as they walk or stand near you!
“Today’s National Grab a Thigh day so don’t forget to grab a thigh today!”
by Idek:) June 4, 2019
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