Someone whose brain is like a metal box with an apple core, a Flinstones vitamin (Barney), and a couple potato chips clanging around in it. And that's all.
Megan probably won't remember she's supposed to meet us here even though I reminded her her four times. What a lunchbox.
by ssarrrrah September 27, 2010
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1) A box to keep food, especially a lunch. Often found at schools, picnics and such.
2) Someone fat who looooves to eat, such as Silent Bob from such films as "Jay and Silent Bob strike back"
1) "In my lunchbox I've got some bread..."
2) "Yo! Lunchbox, come over here!"
by Snoogans November 13, 2005
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a food container or someone who is lunchin- geekin- trippin- actin a fool- or just a plain idiot
man she is such a lunchbox, she feel over her own feet when she wasnt fcuked up
by g-roge March 9, 2006
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Someone who used to work and can still work and has skills but chooses to draw unemployment and mooch off friends and family. The lunchbox typically is up on all the latest TV shows and often can discuss the characters on various soap operas with women while you are buying them drinks at the bar. Lunchbox gets laid, but goes ugly early because he is only a shell of the man he used to be.

He's called Lunchbox the same reason you call fat guys "Tiny" and bald guys "Curly." Lunchbox has no reason to put a meal into a container for transportation purposes or to be eaten later. Lunchbox has been konwn to subsist on jam sandwhiches- two pieces of bread pressed, or "jammed" together, for weeks at a time. Additionally, the Lunchbox tends to become nocturnal and uses the phrase "crack of noon" frequently.
Glen, have you heard from Lunchbox recently?

Dude, I took Tuesday off to go to the dump, stopped by his apartment and we smoked me out of weed in 20 minutes.
by nphilbro January 26, 2009
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Wow.. Bryan is fuckin lunchin yo.. Haha yeah he's such a lunchbox
by lunchie July 13, 2004
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