Wiktionary
alt. (context informal English) Moustache merely covering a (l en philtrum). n. (context informal English) Moustache merely covering a (l en philtrum).
Usage examples of "toothbrush mustache".
He seemed a typical military duffer, with his check jacket and toothbrush mustache.
The parting in his short gray hair was almost unnaturally straight, and his narrow toothbrush mustache looked as though he trimmed it using a slide rule.
Idee fixe, the instructor, a prissy little man with a toothbrush mustache, had called it.
Hitler's little toothbrush mustache quivered, as if he'd just smelled something rotten.
Dorian wondered what Faith Kelly saw in him: a skinny man in his late fifties, thinking of retirement from this madness, his only vanities being his carefully groomed toothbrush mustache and his wardrobe.
Hikita was older, gray-haired, with a little toothbrush mustache and a weary air.
He wore a woven skullcap over dark brown hair going to gray, and he was clean-shaven except for a toothbrush mustache that seemed to be held in place by the curve of his prominent nose.
There he was on the forged passport -- a bald man with a toothbrush mustache, dark eyes that stared directly out of the square photograph.