Jon Gosselin got more dressed up than down for his big debut as a male stripper, and about the only skin he showed was his legs ... in a grass skirt.
The former reality star took the stage Saturday night in Atlantic City, and slipped into all kinds of outfits -- Secret Service agent, firefighter and even a hula dancer -- but never once took off his shirt or pants.
So much for weeks of rehearsing. Walk ... squeeze fake fire hose nozzle ... walk again. Still, women put a few bucks in Jon's waistband.
Guess they were happy to NOT see much.