I started paying attention to mentions of Dubai in the non-traditional places (ie. not newspapers or news channels). First one I noticed was the mention of Dubai in GTA4 (Grand Theft Auto IV). It was in connection with a construction site where the workers were on strike and you had to take them out. I'm still stuck there!
Then the Terminate on Sight (TOS) album for G Unit came out. I like 50 Cent, Lil Wayne, etc.. but this album is terrible! Nevertheless, they managed to squeeze in a mention of Dubai in the track, "Get Down".
The lyrics go a little something like this:
I'm out the hood gettin fat and high
bought the jet, now it's time to fly
got the rolling with the [can't make it out], getting head in Dubai
So, yes, ladies and gentlemen, he is referring to what you think he is..