PAULA ABDUL IS A REGIFTER!

Swag Hag PAULA ABDUL got caught acting like a cheesy cheapo when she birthday-gifted a galpal with a store certificate – only to be embarrassed when the store rejected it, saying it was a promo freebie authorized for Paula’s use ONLY! Incredibly, say sources, the “American Idol” judge is a secret rehab Scrooge. She pack rats plunder from goody bags snagged at Hollywood red-carpet events in a special “gifting room” at her LA home, carefully catalogs each item by computer – and saves a bundle of buck$$ “regifting” friends and co-workers on Christmas, birthdays and special occasions with giveaways that didn’t cost her a dime. When Birthday Girl came back bitchin’ about the bogus certificate, Paula turned beet red, but…turned right around and regifted her pal with yet another item from her freebie suite!