Expression used to turn somebody's statement into a sexual innuendo, or to point out that it sounded sexual. The joke being, of course, that "She" - a mysterious woman, who seems to have sex with a lot of people (and who some believe to be "Your Mom", in accordance with these kinds of joke), supposedly used that statement in a sexual context.
by waraiotoko January 15, 2011
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The most commonly used phrase among teenagers everywhere
K: Just put it in there, please.

Carol: That's what she said!

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Carol: Did you eat it?

K: I put it in my mouth.

Carol: THAT'S WHAT SHE SAID!

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K: I have a brain tumor, and I only have three months left.

Carol: THAT'S WHAT SHE SAID!!!! Wait...
by i lost the remote April 17, 2009
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A phrase that is addicting to say once one person refers to it...sometimes taken out of contex so it may not even make sense...

a sex joke, aka things that 'she' would say during sex

Btw, 'she' is a dirty little slore
Bob: Yeah I had some jello yesterday
Pete: That's what she said!
Bob: That doesn't even make sense...
Pete: That's what she said!
Bob: Dude, shut up
Pete: That's what she said!
by g_gurl69 March 8, 2010
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A common phrase said by little bitches who font have any comebacks. Also used as a unfunny joke.
Person: these are so tight.

Person 2:That's what she said nigga.
by BigOl'Dick May 18, 2022
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A "comeback" or comment to make a conversation into a sexual joke. First said on The Office, it is way to turn a comment dirty
"Wow, that's long."
"That's what she said!"

"Can I touch it?"
"That's what she said!"

"My hand is wet!"
"OH...That's what she said!
by XxKayleyxX March 6, 2016
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