1 definition by Baxt

To pull over and masturbate when driving long distances. Much like the advised "power nap" to avoid accidents.
"Man, ive got one hell of a boner, better pull over and power wank."

http://www.youtube.com/watch?v=6hTWzmxSJQ8
by Baxt August 28, 2008
Get the Power Wank mug.