A puffy, hollow, fried bread made from a dough similar to dough used to make flour tortillas. Can be eaten plain, with honey, or used as an "edible spoon" (much like a tortilla). It can also be stuffed with beans, chile, meat, cheese, lettuce, etc.
I had a stuffed sopaipilla, served Christmas for lunch.
Short for "lambe culo,", a term in Spanish that means a brown noser or a sycophant. Often used by kids in school to insult students who suck up to teachers by volunteering and answering questions constantly.