Completely finishing a platter of Mexican food from a Mexican restaurant. Typically, the platter will consist of any three items (burrito, tostada, tamale, taco or enchilada) and it is always accompanied with both rice and refried beans. Black beans may be substituted, but usually the black bean customers cannot achieve mexiclosure. One and two item platters are also applicable although not impressive.
"I'm totally stuffed. I don't think I can achieve mexiclosure." said Alex.