When the vagina is eaten while a girl is on her period and has a green discharge, thus simulating salsa and guacamole.
Did you hear Paco gave that bitch a Mexican Lunch? He is a Baller!
by Mexican Hero 123 February 14, 2010
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School lunch. This term was developed because only poor mexicans are seen eating lunch served in school cafeterias.
First foo: "Dude what are you having for lunch?"

Second foo: "I'm having poor mexican lunch today"

First foo: "Aw dude gay, that sucks."
by spencomaniac January 1, 2010
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The mexican sack lunch is making use of your condoms in more ways then one. After ejaculating in a proflactic during anal penetracion tie it off carefully so not to spill. Take the tied up condom and give it to a friend so they may savor the love at another date. No refridgeration nessesary.
Hey dude, are you gonna finish that mexican sack lunch?
by Cory Komasa January 19, 2007
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