a rowtit is an unrecognised medical condition
common in very hairy men, in which nipple
hair gets too
long, too out of control, too quickly
being able to grow a rowtit is a sign of either being a man child and/or a very hairy
bloke in general
dude 1: "I think I have finally
hit puberty"
dude 2: "well can you grow a rowtit?"
dude 1: "no..."
dude 2: "then you are not yet a
man!"