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

A Bottle of Jack

Something you brush your teeth with.

Ke$ha: "Brush my teeth with a bottle of jack"

by chipsdubbo January 14, 2010

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 September 23, 2015

jack off a titty

playing with a tit or nips, basically getting a girl wet by playing with zem titties

"hey chad do you know how to jack off a titty??"
"what the fuck does that mean bro"

by rocky69420 April 5, 2022

jack is a penis

jack is a pp

jack is a penis

by sisterfister69 March 24, 2021

Jack with a b (bunda)

Jack with a b is a tall white man who has a very nice scrumpdiddlyicious ass, usually a teenager, he is very bulky and well built, he looks like a murderer 24/7 but he is actually a very caring person, he likes to tend people and mind his cat (his name is marc) he tends to be very picky about food, likes shrimp crackers but can't handle alot of spice, overall a 18/10. A very nice person indeed

Yo did you hear? Stephanie's got herself a Jack with a b (bunda)
Man, she must be so lucky
Yeah but I heard his cat marc isn't happy about it

by Cockbiter69420 April 23, 2022

Jack in a Box

When you masturbate inside of a box

I wanna Jack in a Box.

by DirtyRed October 31, 2017