Facial hair that is unkept and intimidating.
Typically agressive male rapists have this type of beard since they do not bother with grooming activities as they have more important things to do like lift weights, drink beer, smoke ganja and scope out dark alleys.
Dude what's with the rapist beard?

-Haven't been able to shave sinc i spent my last 10 bucks on new wife beater shirts.
by powerhouse1978 September 25, 2012
Get the Rapist Beard mug.