'Biggest Loser' Trainer Involved in Big Fat Fight

4/25/2009 12:30 PM PDT BY TMZ STAFF
Jillian Michaels, the no nonsense trainer on "The Biggest Loser" who whips overweight contestants into shape, dealt with her own weighty drama in West Hollywood last night -- some d-bag called her fat.

Jillian's male friend and everyone else outside Guy's came to her rescue, but we're pretty sure she could have regulated the creep on her own.