Noun

A game played with a maximum of four friends who are male. Each participating member cuts a hole in the side of the same, covered box. Each member then proceeds to lower their pants and underwear and masturbate (hence the "Jack").

Each member should attempt to orgasm at once. Should any particpant orgasm early or late they are eliminated. At the point of orgasm, all particpants must put their penises in their hole in the box and shake the box around.

Once all members have finished, the lid will be removed and each player will attempt to guess whose semen it is that is now on their penis.

One would believe that the semen would be that of the man immediately across from you, however this is not often the case.

The player whose semen covers the most penises wins.
We played Jack Box last night at that sausage fest party. I won, but I was tired for hours after.
by KinkySasquatch January 15, 2018
Get the Jack Box mug.
A crackerjack box was the disposable cardboard box used to hold popcorn or candy (sweets), though over time has come to mean a similar box or container used to give away rather useless, cheap toys and/or giveaway items. So anything referred to as 'coming out of a crackerjack box' is being derided as useless, cheap or fake.
Did you get your degree out of a Cracker jack box? (ie. your degree in media studies / sociology etc. is worthless)

(From Meatloaf's "two out of three ain't bad"): There ain't no Coupe de Ville hiding at the bottom of a Cracker jack box (you'll never find a valuable and exotic, vintage car in the bottom of a crackerjack box)
by Nigel An'srid December 18, 2016
Get the Cracker Jack Box mug.
A rich white person or stupid white person that keeps staring at you because of what you have if your a person of color
Look at the fuckin cracker jack box over there hating on me, fuckin cracker jack wat the hell you staring at
by Jamesindtown September 15, 2007
Get the Cracker Jack Box mug.