To rock one's tache involves percuring a false tache of the 'dirty' persuasion by way of resting a horizontally out stretched finger across the top lip.
by mydad'scat'sbrother'sgf. March 23, 2009
A moustache that is thin, patchy and/or very ugly that makes the bearer of said moustache look like a mug
Teen 1: Look man I think I'm getting a moustache!
Teen 2: It looks shit, you definitely have a mug-tache
Teen 2: It looks shit, you definitely have a mug-tache
by Tom691738 July 18, 2018