Definition of "stache"

Only one show has succeeded in keeping a kid in the lead for a decade: "The Simpsons" with the animated Bart Simpson. Watching Bart never mature is considered a key to its enduring appeal. "Early on, I know that the powers that be decided that no one would age," said Tim Long, the show's current head writer. "A kid with a starter ‘stache, that would just be unpleasant," he added.

2003 July 28, “Don't Wanna Grow Up Cuz Puberty Isn't Funny”, in The New York Times

[The candidate] may face an entirely different challenge in his quest for the mayoralty: his mustache. [...] The perils of the ‘stache may be hard to define, but analysts say that looks matter in politics, where facial hair is frequently considered verboten.

2005 May 23, “Democrats Still Searching for a Stronger Challenger”, in The New York Times