Top Definition
A Jumbo Jack (from Jack in the Box) encased by two of their $.99 tacos, placed above and below to create the ultimate hangover/stoner 3am meal.

See also: Mcbuttfuck
Dude I got the munchies baaadd... Lets go get JUMBACOS!! ....yeeeaahhhh.
by locke_cole495 January 10, 2012
3 more definitions
That Jack In The Box commercial that gets stuck in your head. You gotta admit they thought that commercial out well. From the cheesey pop song ploy, condescending teacher figure towards Jack, and him having to break the news to his son. This commercial appeals to every audience. Smart writers o:
"Jumbaco, jumbaco, jumbaco!"
by relive2usfate January 24, 2012
The Jumbaco is a DIY Jack in the Box® product consisting of a Jumbo Jack® sandwiched between two Tacos.
FIRST YOU TAKE A JUMBO JACK®
THEN YOU ADD TWO TACOS
WHADDYA GET?

JUMBACO JUMBACO

JUMBACO JUMBACO
by JackintheBoxRestaurants January 23, 2012
A: Boss that does not like busters . loves all the ladys and will take your man hood .
Dont fuck with the Jumbaco
by wasdadeal2002 January 20, 2012

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