A moving humvee.
Humvee definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a four-wheel-drive all-purpose vehicle, successor to the jeep, used by U.S. armed forces
Humvee definition by American Heritage Dictionary
A trademark used for a durable wide-bodied military vehicle with four-wheel drive.