being a prick
Don pulled a sheldon when he told on jack for calling him an idiot
by Juan Taiwan February 11, 2016
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During a three way
When the other girl is sucking your dick, your girlfriend smacks her head against your dick until she pukes on you.
“Ew bro what is on your pants?”
Shelby and this chick gave me a dirty Sheldon last night. Shit was crazy”
by CremOfSumYungGui May 28, 2019
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A Sheldon Convention can refer to 1 of 2 things:

1. The meeting of millions of hot women to have sex with each other in front of Sheldon.

or

2. The meeting of millions of Sheldon's. Every Sheldon is repeating the phrase, "WOMAN, WHERE'S MA SAMICH?!?"

Note: Ma Samich = My Sandwich
1. This Sheldon Convention is awesome, look at all these women!

2. Man there are so many Sheldon's here, this must be a Sheldon Convention...WOMAN, WHERE'S MA SAMICH?!?
by ShaneMolloy August 11, 2008
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when a boyfriend is "talking" to a girl that isn't his girlfriend
girlfriend: "Oh my god! my boyfriend is cheating on me! look at the texts he sent to this other girl!"

friend: "wow, that bitch pulling a sheldon."
by boompowlala November 25, 2012
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if aids was a sitcom, it'd be this one.
A: I always wondered how aids would be as a sitcom.
B: Go look it up. It's called Young Sheldon and is running on CBS.
by Aidslord November 12, 2017
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