Jack in the Box

When your fucking a girl (usually doggy style) and your boy is in the closet jerking off then he runs out and busts a nut on her face.
Yo man this Bitch gave me the Kangaroo so I got her with a Jack in the Box.
by DC April 11, 2004
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Jack-in-the-box

While texting, you reply to their messages so quickly, that you scare away potential romantic partners.
He replies so fast, he’s like a jack-in-the-box.
by QuimpGod69 July 15, 2020
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Jack-in-the-Box

Term used to describe someone you once dated, who unlike you, cannot let go. So they "pop-up" randomly in places they know you frequent as such: Your favorite book store, the park where you go jogging, the mid-night movie at the theater near your house - even though they live at least an hour away.

An individual demonstrating Jack-in-the-box tendencies can quickly become a Stalker or a full blown Psychopath if not confronted with the Jack-in-the-box behavior.
Smitty and Jane break-up. Smitty, in a fit of anguish tells Jane he is leaving the country and never coming back.

Later that week....

Jane is jogging along her favorite running trail, rounds the bend and there Smitty is running toward her with a shit eating grin..."Oh Jane! I wasn't expecting to see you here!?!?" Smitty has pulled a classic Jack-in-the-Box.
by Sophacles September 26, 2012
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jack in the box

A fine fast food restaurant with a large variety of burgers, unique fries, as well as many other unique edibles. They don't make it til you order it.
by Wild Bill August 03, 2003
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Jack in a Box

A penis that looks average until it is aroused and then erects to a size well above the norm.
Andrew: Yes, my penis looks only about an inch long when it is soft.

Slampiece: Well I must admit, your Jack in a Box was a nice surprise!
by Quagmire517 September 09, 2011
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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
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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
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