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Jack-In-A-Box

A toy. Not to be confused with "Jack in the box", a fast-food restaurant.

Baby Hugo cried whenever he played with his Jack-In-A-Box. Every time Jack popped out it frightened him. Bad Jack!

by MTF January 22, 2009


Jack in a box

When you have an erection that your girlfriend doesn't know about and you whip it out of your pants and show her your hard on, usually with a really pleased expression on your face.

I was lying in bed reading the other day when Rob pulled down the sheets and sprung his jack in a box on me!

by Robertion August 17, 2011


Jack In A Box

When a girls fists herself and then you put your dick in too and she gives you a handy.

I went to a donkey show in Tijuana and the girl really stepped up her game by giving the bachelor a Jack In A Box.

by fucklayton August 16, 2015


jack-in-the-box

One of the best fast food restraunts out there. An actual clean restraunt other than hardees or mcdonalds. They make quality food.

Im gonna get me a chicken fajita pita from jack in the box.

by Oz April 20, 2005


Jack in the box

While you are 'jack'ing off, someone walks in on you just as you are climaxing and you ejaculate on them.

Sexy man 1:Dude did you see that American Pie?

Guy 2:Oh yea the one where stiffler pulled a jack in the box all over his grandma!!

by SPsexyman555 September 28, 2011


jack in the box

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


jack in the box

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