The state of being so high that you begin speaking another language.
Friend 1: Yo, did you know that Marcel speaks Mandarin?
Friend 2: Yeah, but he only knows it when he's high as a kite, man. He was straight up Rosetta stoned last night.
by YungSebs April 21, 2016
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When someone is so stoned that they start speaking another language.
Guy 1: Hey man, what's up?
Guy 2: Je suis un buffle!
Guy 1: What are you, Rosetta Stoned?
Guy 2: Si senor.
by EightBitDictionary April 25, 2016
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Is a good person she is a gym teacher and treat all of her students as if they were her own children and isn’t afraid to tell the truth also is very funny and spontaneous
Ms Rosetta nairne is the best gym teacher ever
by Lay Fraser December 3, 2017
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