Jacksonville jack in a box

You are recieving a rim job when you shart in the rimer's mouth with great force

Hey man, last night i gave her the Jacksonville jack in a box and she loved it.

by Spawj May 20, 2014

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 9, 2011

playing jack in the box

sex
penis=jack, vagina=box

after the party i went over to jill's and we stayed up all night playing jack in the box

by jojo548 December 16, 2008

Myspace Jack In The Box

When a person looks good in Myspce but when you see that person in real life looks ugly as shit.

She looked prettier in that pic but in real life? man I almost threw up
-Myspace Jack In The Box

by LA Lakers March 20, 2008

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

Kentucky Jack in the Box

The unfortunate but hilarious consequence of having sex with a woman less than six weeks after a C-Section, resulting in the penis stabbing out of the closed wound. Commonly known to happen Kentucky.

Woman: WHY THE FUCK IS YOUR PENIS STICKING OUT OF MY BELLY BUTTON?!
Man: WOW this looks like a Jack in the box... A KENTUCKY Jack in the Box!

by JerJax December 9, 2008

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 22, 2011