I tried to write it out and type it out, but it's too fast, even with pausing!
No cusswords in the entire song. I double checked iTunes and around online an there's not an "explicit" version so I'm pretty confident it's a verbally clean song. The song overall is mostly like what I said earlier. The title, "Dame Dame" (pronounced Dah-meh) means "Give me Give me" The whole song is all about the guy telling a girl to give "it" to him, don't hold back, give it all to him. Starts out asking for kisses then moves into the whole give it all to me, don't hold back, etc. The song overall is just innuendo, not particularly vulgar. The most vulgar part in it was the English rap part where the guy's rapping about calling a girl up for a one night stand - he has a bit where he's talking about a booty call at night and asking "do you want to b*ne" (self censoring there)
Overall, it should be fine for Zumba. Heck I might use it when I start teaching in October.
* I'm often reading and posting from mobile and Siri loves to make a mockery of the English language.