1 definition by BooyahUSMC
When a guy is not wearing any underwear. This is done by Marines or Soldiers during forced marches or "humps" to cut down on shaffing. Must be done in conjunction with a liberal amount of Gold Bond or baby powder.
My girlfriend thinks it's hot when I go commando. She doesn't know that I do it because I am to lazy to do laundry.
by BooyahUSMC May 30, 2006