mousetache mouse-tache noun An unshaved growth of hair on the upper lip that resembles a rodent SEE ALSO: mohawk Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window)Like this:Like Loading... Related