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An establishment in which hamburgers are bought and sold. Contrary to conventional fast food-ery, In n Out Burgers are sold in the "Double-Double" format.
"He lives in North Hollywood, by the In n Out Burger"
"Yes Donny, we can go to In n Out Burger"
by Colliflower August 15, 2006
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1. a good fast food restaurant

2. (slang) Another way of saying double-penetration
person one: hey, you seemed to enjoy yourself last night.

person two: yah , me and johnny gave her the In n out Burger last night.
by thinnoutburgerman June 07, 2009
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A burger chain that has a very limited menu (double double, hamburger, cheeseburger, fries, milkshakes, sodas) with a secret menu (animal style: extra spread, mustard grilled patties). It's very good, but Californians praise it to death, therefore its also very overrated.
Do you want to eat at In-N-Out Burger for lunch?
No thank you, I'd rather eat somewhere else that has bigger patties
Are you on crack?
by partyrockstar222 November 30, 2016
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An exclusive chain of burgers which are laced with some mysterious addictive substance as people will line up for a mile to get their ‘animal style’ fries and 4x4 burger.

They also have bible scriptures on the inside of their cups and most of the original heirs to the burger dynasty all died in very odd ways.
“You haven’t really experienced California until you’ve been to In n Out Burger and had a double double with pickles and fries!”
by TauKitty June 12, 2018
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