A portable toilet, or pot-o-pot, that is totally dirty, stinky, foul and fucked up and destroyed on the inside, especially on a construction site with many workers. This term comes from the massive amounts of Mexicans on these job sites, and the unsanitary conditions left by them after eating several bean sandwiches for lunch, and standing on the seat instead of either sitting, or using the U.F.O. position, in other words, hovering.
Charles- Man I've had to take a shit for hours, but I can't hold it any longer.

Dave- It sucks to be you, there's no bathrooms around,I guess you're gonna have to use the Mexican Lunchbox.

Charles- Fuck that! I'd rather shit myself! I went in there to piss this morning and it looked like someone was finger painting with a melted Snickers bar!
by Berumper March 01, 2011
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The act of bidding and winning an item off Ebay, then realizing that you spent too much money and didn't want it anymore.

The result is that you end up not paying for the item and then lie to the seller as to why you're not buying it.

This is all done in an effort to avoid receiving negative feedback.

* This term came about after winning a $50 bid for an old lunchbox that featured a chimpanzee on it. A lie was created and told to the seller- No negative feedback was given.
I pulled a Monky Lunchbox when I didn't pay for a bootleg copy of Over the Top DVD I'd won.
by BadHippo February 07, 2005
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A person who pretends to be in excellent physical shape but in reality they have absolutely zero muscle definition and the only thing holding their body together is flabby skin and fat rolls.
I thought that girl's body was rockin' until we got back to my room and I realized she was nothing but a tubby lunchbox!
by J-Hole Volcano March 28, 2013
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Code word for blowjob, not to be confused with sonky lunchbox, which is where you shove a nike lunchbox up some girl's pussy
"Bro, my uncle made me give him a soggy lunchbox last weekend."
by beanconsumer6969 April 17, 2019
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Where cling film is placed in the mouth of a man/woman, while a man takes a steaming shit into their mouths, then receives oral sex in his own shit. Yum
Phwooar that smells like shit, it is shit, oh good.
by Ethan Muse May 10, 2005
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1. When you put a peanut butter and jelly sandwich down a girls snatch, remove it, and enjoy the juicy goodness; or
2. A delicious consisting Amaretto, orange juice, and Blue Moon.
I gave my girlfriend a Wisconsin Lunchbox, then I washed it down with a Wisconsin Lunchbox.
by Jimmy, Elan, and Ben January 13, 2007
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