The state of mind acquired upon participating in excessive amounts of substance abuse to the point of achieving and surpassing the wonderful feeling of being "turnt." Most often resulting in loss of memory of all activities from the previous night.
"Dude, I got so turnt yesterday night!"

"I was U-turnt (throws up gang sign because substance is still causing silly behavior) I woke up next to Pikachu and had a pokeball tattood across my face!"
by Poonslayer6969 June 14, 2013
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