"STUCK UP" EVA IN STICKY SITUATION

Feeling like a total ass, EVA LONGORIA PARKER exploded in a major meltdown on the “Desperate Housewives,” set when she sat her designer dress-clad moneymaker down on a chair, instantly felt something squishy beneath her butt and shot to her feet – both hands clutching her posterior in panic – screaming: “WHO THE HELL PUT THEIR GUM ON THIS CHAIR?... OHMIGOD, IT’S DISGUSTING!”

Turns out somebody who’d been chomping a massive gum wad had tossed it at a trash can and missed – but Eva never saw the gooey blob when she sashayed out of her dressing room for her next scene dressed in a gorgeous gown, took a load off and… SPLAT! …got gum stuck to her bum.

As Eva shrieked and wailed, wardrobe ladies came running to perform immediate emergency surgery because they didn’t have a backup dress.

Finally, after close to a half hour of slowly working the gum with ice, among other things, they removed it without damaging the dress.

Still outraged, Eva hustled into her camera setup, snarling loudly at cast and crew: “I’d better not find out who did this because they’ll be looking for a new job tomorrow!”