In Ecuadorian Spanish a word for dude or guey more or less. Used by Angel in Ratas, Ratones y Rateros all the time.
"Chucha loco, préstame tu carro y no seas pendejo."
“Fuck dude, don’t be an asshole and lend me your car.”
"No me jodas loco. Estas espantosamente chuchaqui."
"Lay off it, man. You are frighteningly hungover."