This is Redditor chrismusaf's friend's Bat-symbol mustache. It's not the first Bat-symbol mustache we've seen, but it IS the cleanest cut. Clearly this Batman wannabe knows his way around a razor. Around his apartment in the dark? Not so much (his toes look like little bloody sausages).
Thanks to ChaosLex, who loves chaos so much he once posed as a barber then shaved penises into the back of ever customer's head.