What does that Gmail ad mean when it says "Like doing Tallahassee at 90% off"?

I'm so confused. The ad is for that website Groupons and it says "One ridiculously huge coupon a day. Like doing Tallahassee at 90% off!" Please help me out!What does that Gmail ad mean when it says "Like doing Tallahassee at 90% off"?
Probably airfare to Tallahassee at 90% off the normal price...