The act of attempting to leave the fast food restaurant In 'n Out, but coming back in after realizing you crave another succulent burger.
Man, I was so hungry, I went "In 'n Out 'n In"!
by Blatent Lack of Judgement August 4, 2010
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Act of fornication, usually male oriented with an overtone of aggression and violence -- in other words, rape. A street term from A Clockwork Orange by Anthony Burgess.
Feeling like a bit of the ole in-n-out, lads?
by Gisstur December 6, 2009
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A little in-n-out is a great way to start off the morning.
by _Kal April 27, 2005
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Where someone deficates into another person's rectal cavity and the person taking it stands up and deficates the other persons fecal matter out of themselves.

-Fabian Orozco
I can't believe she was up for the in-n-out, there was shit everywhere.
by dadrunksailor November 14, 2014
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Decent place to get a decent burger. Family that owns it is REALLY fucking religious. Check the bottom rim of a soda cup. They print their favorite biblical passages there. Weird. Food's alright for the price tho.
Dude, it says Deutronomy 11:6 on the bottom of my In-N-Out cup
Isn't that the one where god tells the Jews to brutally slaughter every man woman and child of a nation?
Ya. Religion is fucking stupid
by MrMojoRisin' October 20, 2007
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A girl who would not be considered a 10 under normal circumstances, but is a 10 due to the simple fact that she is in a fast food restaurant lobby where hot girls usually don't hang out.
Bro #1: Bro, check out that girl in the line that just ordered a double-double and fries!
Bro #2: Dude, she's a straight up In-N-Out 10!
by klmatthews20 February 19, 2014
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