2 definitions by Frank A. Boston
Any words or symbols displayed across the backside of a girls skirt,shorts,sweat pantsorjeans to draw more attention to their ass.
by Frank A. Boston September 3, 2008
Utilization of a billboard butt by a company or organization to sell or promote that brand or organization.
Hollister and Abercrombie are two company's that know how to assvertise. I've seen nearly a dozen of their billboard butts today.
by Frank A. Boston September 3, 2008