From Wiktionary, the free dictionary
Literally, “crazy pupusa”.
pupusa loca f (plural pupusas locas)
- (El Salvador) a type of big pupusa, commonly the size of a personal pizza, which is stuffed with a combination of several ingredients (aside from the common ones, cheese and beans), including: chicken, meat, chorizo, cheese, loroco, mushrooms, jalapeños, squash, shrimp, etc..