Scar Jo Opens Up Her Famous Mouth on Lilo Feud

A couple of years ago, Lindsay Lohan used her favorite curse word to describe fellow actress Scarlett Johansson.

(If you don't know WHICH word I'm talking about, click HERE.)

But what exactly prompted the outburst? Even Scarlett's not sure! The December cover girl tells Allure magazine, "I really don’t know that person. I only met her, like, three times."

And when asked about the infamous incident, Scar Jo replied, "I don’t know what the motivation was behind that. I remember it was something really vulgar -- I mean, shockingly so, like, 'Whoa, what, who are you?'"

Kind of anti-climactic, huh?

She wasn't any more forthcoming about being the inspiration for Katy Perry's I Kissed a Girl.

"I had no idea -- I should get a cut!" she told the mag. "That's flattering, but my lips are kind of taken."

Too bad, we were kind of hoping there was a juicy story behind that one!