A very disturbing sexual move. The move is similar to the "Alabama Hot Pocket" except the male defecates in the female's vagina while she is menstruating, and then finishing off by ejaculating inside of the feces.
This was deemed the "San Diego Enchilada" for it's origin, and it's similarity to an enchilada. The feces act as the ground meat, the menstrual blood as the enchilada sauce, and the semen as the sour cream.
Did you hear that Jack gave Jill a San Diego Enchilada? It's been a week and she still smells like a pile of rotting fish.