queermo mustachio Share definition Flag A man(or woman) that has a mustache that goes down past their lips. The mustache is the color of dirt. Ah ha ha! You're a queermo mustachio! God damn! Your mustache goes for miles! queermo mustachio by MustGoGo November 26, 2005 0 0 Get merch Get the queermo mustachio mug. Buy Now — $32.95 See more merch