Funky looking mustache common among male porn stars
"hey that pornstache sure distracts from his huge member"
having a moustache that resembles Ron Jeremy's, world known porn star.
Heheh, that dude got a fucking porn stache.
A otherwise normal mustache that somehow manages to do nothing but make its owner look seedy.
Dave's attempt to grow facial hair ended in a rather disturbing pornstache.
ill-advised moustache resembling a moustache a porn star would have.
CSI's George Eads was sporting a pornstache for several episodes.
A specific individual wearing aforementioned pornstache