The unparalleled pain and bloating that results after consuming an excess quantity of Mexican food. Commonly results in feelings of pregnancy, a desire for a siesta, and/or desire to never again eat Mexican food.
Kathy: Dude I am so down for some mexicution right now
Greg: ...it's 8 in the morning. It's too soon
Kathy: For lunch we're getting mexicuted, I need to get two tacos, a bucket of beans, and a cup of nacho sauce.