Someone who acts slow or drowsy, and generally seems disconnected from reality or 'out of it'.
Guy 1: You never listen to me properly.

Guy 2: ...

Guy 1: You're like a fart in a trance.
by Evezz January 21, 2009
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To be caught in a mental state of un-knowing whilst constantly dropping farts
Brad wont be attending school today, as he iscsught in a fart trance
by JC Conradical June 18, 2015
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