From gurner, to be gurned-up, under the influence of Ecstacy.
Ha! look at Mike, he's gurned-up to his eyeballs!
ayon kay Plush Terry ika-05 ng Agosto, 2004
The act of dissing, hitting, or messing someone/something up.
Barry gurned the sign-out sheet at work today.
ayon kay Chazzy Daddy ika-01 ng Setyembre, 2008