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To speak in tongue. To use words only you or few comprehend. Or to speak like Ozzy Osbourne.
1. I'm not speaking in FARTINESE.
2. Those kids nowadays really know their FARTINESE.
3. You talking FARTINESE?
4. Ok, I'm gonna use FARTINESE, so you will understand what I'm saying!
by Onecrzyhairball September 03, 2016
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