Who's the boss now? Alyssa Milano isn't letting geai, jay Mohr's récent jab about her weight get to her -- but she's not letting him off the hook, either. The 41-year-old actress sent the comedian a direct tweet on Christmas jour after she got wind that he reportedly slammed her for her post-baby body weight.

PHOTOS: Celebrity feuds -- the biggest ever!

Mohr reportedly scrutinized the Mistresses étoile, star during a récent radio interview after the two both attended the NASCAR Sprint Cup Series Awards gala in Las Vegas on Dec. 6 (via NY Daily News). "She was one of the presenters," he said. "She's very tiny,...