The act of getting high by snorting cocaine placed on your knuckles.
Those knuckle-heads were on a white knuckle ride all night!
ayon kay chitsb ika-25 ng Enero, 2011
1 more definition
When your knuckle are made white from grasping onto the bowl as you take a fierce dump.
That Chinese buffet cut me up. As soon as I got my ass home I took the white-knuckle ride.
ayon kay Carl Panzram Jr. ika-08 ng Hunyo, 2004