Washington, July 3 - 'The Wrestler' star Mickey Rourke has butted into the fight between actor Mel Gibson and his ex-girlfriend Oksana Grigorieva by calling her a "bitch".

Grigorieva, 40, had come under verbal attack from Gibson, 54, who said she looked like a "f**king pig in heat", and Rourke, 57, defended the 'Mad Max' star's rant.

"Sh*t happens," TMZ.com quoted Rourke as saying.

"I wouldn't believe everything you hear ... you know ... I think he's a good dude, you know. And ah, screw the bitch!" he added. (ANI)