/Jak/./En/./Tha/./Baks/ adj. 1. To drop in on someone completely unannounced thus upsetting them or potentially ruining something. 2. Dropping in without calling. 3. Showing up unannounced and fucking everything up.
1. He was about to get some from girl on the side but his woman Jack in the boxed his ass.
2. I was sleeping like a baby till I got jack in the boxed by that douche Bobby.
2. I was sleeping like a baby till I got jack in the boxed by that douche Bobby.
by Soulsurvivor_2001 March 08, 2006
Before climaxing during a blowjob slamming your partners head down, thus making her deep-throat your penis and ejaculating down her throat.
When talking to my girlfriend she informed me the she spits and doesn't swallow. so mid-blow job I slammed her head down and gave her a jack in the box.
by MPASS August 05, 2011
While one is having sexual intercourse with his girl and they are fucking but while his penis is in her he grabs the end of it and "shakes hands with mr. happy" until he climaxes.
Friend: "Hey man what did you do last night, you look exhausted"
You: "Oh well man, Jack-In-The-Box came pretty "handy" last night near the "end" of my session with my wife."
You: "Oh well man, Jack-In-The-Box came pretty "handy" last night near the "end" of my session with my wife."
by Scott#@!@#! October 29, 2008
The act of taking an aborted fetus and inserting it into a girls rectum. Then when your friend is having sex with her, you run out and jump on her stomach, revealing the suprise.
My little brother was being annoying so i gave him a jack in the box.
When I gave him a jack in the box, he had sex with jack.
When I gave him a jack in the box, he had sex with jack.
by A-jizzle-jizzinmamouth December 15, 2008
When one takes Adderall when one is still half asleep, whilst setting one's alarm to go off ten minutes into the future. When the alarm goes off, one will find oneself jumping up, suddenly wide awake. Popping up out of one's bed like that fey, much-celebrated children's toy of yesteryear.
Jack: Give me some of your 10 mg generics, I am going to need to pull a Jack-in-the-box this morning.
by skullskratching-soulsearching December 31, 2013
One of the cruelest turn of events that could happen to any man. Where a female that one has been talking to for several months out of nowhere mentions her "boyfriend" that for some reason had never existed until that moment
Doug: Hey did you hook up with Courtney last night?
Cecil: Nawh! She brought up her Jack in the Box Boyfriend while we were watching a movie...I was shitty!
Doug: I had a bad feeling that was going to happen...damn!
Cecil: Nawh! She brought up her Jack in the Box Boyfriend while we were watching a movie...I was shitty!
Doug: I had a bad feeling that was going to happen...damn!
by Trent McFarlane January 12, 2013
by Noynumal May 02, 2009