Australian jack in the box

The act of a man inserting his penis into a newborn while it’s in the process of being born

Keshawn celebrated the birth of his daughter with an Australian jack in the box.

by Kmandoggiestyle September 16, 2019

Jack in the box

Someone (usually female) who is beautiful on the outside and a lunatic on the inside

I meet this chick, but she turned out to be a Jack in the box. Beautiful on the outside, sang me pretty songs about life and then BAM!! Her crazy popped out!

by LewandaPookieJones January 11, 2015

jack in the box

rough sex resulting on repeated contact with the cervix

she had a hard time cuming unless you did it rough like you're so far in you're birddogging her cervix - like a jack in the box

by cornhuliotheturn November 7, 2024

Jack-in-the-Box

A suspicious or unpredictable person that should be avoided while walking.

Let’s cross the road, that person is a Jack-in-the-Box.

by Musterian March 24, 2025

Rusty Jack in the box

An old senile person that pops up sporadically in an attempt to appeal to the youngest generation in an attempt to stay relevant.

Is that Joe Biden or Bernie Sanders? Either way, it is a Rusty Jack in the box.

by Trixie McFly July 24, 2023

jack in the box

When a person masturbates in public a public setting (class, at work, etc) whilst hiding it under their desk or clothing.

“Did you hear about Jared? The teacher caught him pulling a jack in the box during the lecture!”

by anonymous March 29, 2024

Jack in the box challenge

When you jack in the box of your jack in the box food

Yo bro I did the Jack in the box challenge my GF was so surprised
No way bro Ima try it out now

by MeatBallar October 25, 2022