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
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To be beaten severely about the head, face, body etc. i.e. "Jack up" from
being jacked up combined with shit box
"I will Jack Up Your Shit Box!"

"Tony landed one punch on that guy and really "jacked up his shit box"
by Morbog September 27, 2004
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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
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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
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jack in the box mascot has a wife and three kids and he’s one of the hottest mascots so bbg male wife 10/10 smash would eat his burgers with a side of good good sauce, bro has everything on his menu aswell i say eat at jack in the box
“hey have you seen the new jack in the box commercial
“hell yeah! he’s hot as fuck!”
by cheesenoods June 9, 2023
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When two are having sex, one watches queitly watches in the closet jerking off. Then jumps out loudly yelling carnival noises and takes his friends position.
I was banging this hot chick buy I finished early so my buddy jack in the boxed me.
by Phil Clarke June 26, 2015
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