Exsessive masturbation. As one does when they are high off crack, coke, or any other stimulant drug.
"dude, I was so horny last night I was crack whacking it for hours!"
"Man Tommy's been in the bathroom forever."
"He's crack whacking it..."
"Man Tommy's been in the bathroom forever."
"He's crack whacking it..."
by Minndy April 09, 2008