Lindsay Lohan was photographed over the weekend with white powder all over her shoes — and she is furious that people assumed that it was cocaine. George Lopez even poked fun at the photo on his late-night TBS talk show Monday.

"Thanks for the childish comment regarding baby powder in my shoes to loosen up the leather," the actress, 23, lashed out via Twitter Tuesday. "Don't you have kids? wouldn't wanna hear that about them, or would you? Act like a grown man, have some respect and dignity for yourself."

Lopez, 48, fired back: "Let's take this off twitter, come on the show. You want me to stop talking about you I will. Come and tell me, to my face."

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In February, Lohan spoke out about her rampant drug use that led her to rehab three times. She told British newspaper The Sun she used cocaine and alcohol to "mask my problems … Now I'm in a place where I don't need to use anything and I can feel emotions because I choose to."

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