What is a tropicana speech?

There is no recognized speech or communication style called a "Tropicana speech." It's likely a misunderstanding or a phrase you've heard in a specific context.

Perhaps you're thinking of:

* A speech about Tropicana: Someone could give a speech about the history, marketing, or impact of the Tropicana brand.

* A speech with a tropical theme: This might involve imagery, language, or music that evokes a tropical setting.

* A speech with a particular cadence or rhythm: Some might use the term "Tropicana speech" to describe a speech that has a specific rhythm or pacing, perhaps resembling a catchy jingle or commercial.

If you could provide more context about where you heard this term, I might be able to give you a more specific answer.