Samantha Ronson CVEEmmy092108_1.jpgCourtesy

Michael Lohan didn't hold back yesterday when he called his daughter's girlfriend "dark, hideous" and "disgusting", telling X17online "she uses her middle finger more than she uses words!"

Now, Samantha's striking back by, uh, flipping the bird?

Sam was DJ'ing at TV Guide's post-Emmy party at Kress last night when she gave the cameras the one-fingered salute.

But maybe she's not hitting back at Michael, maybe that's just her signature look!