A poor excuse for a mustache, generally sported by: military personnel,
awkward loser teenagers, trailer trash, rednecks, Mexicans/Latinos, and/or police officers. A trashstache is typically worn by men that lack the balls or coolness to wear a characterful mustache, i.e.
handle bar, 70's pornstache,
freak-show carnival announcer stache, Hitlerstache, 18th century safaristache.
I saw a poser gothic teenager at the mall today. He was wearing an Insane
Clown Posse t-shirt, baggy
hot topic pants, had a crew cut, and trashstache.
Military men trying not to look
stupid with a high and tight or trying to blend in with society grow trashstaches.