In spanish meaning pussy head. Cuca Cabeza's tend to have a split down their hairline like a pussy; thus comes the name Cuca Cabeza. The only pussy they can get is the one on top of their heads. Usually are also named 'Alex' or 'Guerra' and are of Ecuadorian descent.
Boy A: Look at that Cuca Cabeza fingering that pussy!!
Boy B: Woah what pussy?!
Boy A: The one on top of his head. Hahaha
Boy B: Hahaha