When a man masturbates into a cardboard box and delivers it to his girlfriend
Girl: “WTF is this?”

Dude: “You said that you like Jack in the Box?!”
by Hhfttx April 1, 2021
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A bi- or homosexual male who has not yet revealed his sexuality publicly. "Jack" refers to the character from Will & Grace.
Kevin makes more passes at guys than a quarterback, even though he's with Kerri. Do you think's a jack in the box?
by s.a.r.a.h. January 22, 2008
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Disgusting fucking cockroach filled dump where illegal immigrants work in order to pay their rent. Their meat is filled with bones, and the food smells like the mexican workers' body order. The oil is toxic and will make you sick. The place smells like they are buring flesh and turning it into oil.
The only reason Jack In The Box exists is so that Illegal immigrants can pay their rent.
by dfsdgfsgfghsdfgh December 21, 2005
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A man with a inverted penis or a women with a engorged clitoris.
your moms got a really big clit, i think she's got a jack in the box

went down too 138th st, looking too find myself some heterosexual intercourse "man on women love", wound up with a jack in the box. SURPRISE!!!
by Fisty McCramminhands June 10, 2007
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A jack in the box is a diarrehia explosion where it doesn't make it in the toilet. Instead, all over the bathroom and walls.
Oh shit I just jack-in-the-boxed.
by flowerchild91 August 11, 2008
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to masturbate in one's cubicle instead of working.
slave to the man #1: "Work sucks."
slave to the man #2: "At least we can still jack in the box."
by j-moné October 13, 2005
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