noun
(cooking) A Mexican snack food made of a small tortilla (soft- or hard-shelled) filled with ingredients such as meat, rice, beans, cheese, diced vegetables, and salsa.
(US, slang) The vulva.
(US, slang) A yellow stain on a shirt's armpit caused by sweat or deodorant.
verb
(slang, ambitransitive) To fold or cause to buckle in half, similar to the way a taco is folded.