When you give your boyfriend a handjob while he's driving.
Ted was depressed and horny so Mina gave him road hand while driving to cheer him up.
by B.A. and (the hoe) December 14, 2011
n. The act of giving someone driving a motor vehicle a handjob.
Juwann almost ran into a tree on the windy road because he was getting roadhand from Candice.
by Anatole Bofa July 04, 2004