In the southwest US, this the word used to describe ordinary Bananas.
Also used as an insult to refer to Dominicans, especially to call someone a "come platano" (platano eater).
Pedro Martinez is a Platano.
Sammy Sosa es un "come platano".
"In Santo Domingo, all that grew was platanos so that's all we ate. We ate platanos with sugar for breakfast, platanos at lunch, and platanos for dinner."
Manny: Yo jus becuz i came from DR dont mean i came here on a platano boat. You Goya Bean.
Robert: Aiight fair enough