What is Rustache?
1.
Thick black hair surrounding the rectal orifice.
Last night Mike asked Tommy to give him a rustache ride.
See
2.
A thin black line of hair under rusty's 9 or any other indian person's)nose that, when shaved off, makes th nose look 10 times longer.
Rusty shaved off his rustache, and now he just doesn't look complete.