basically the pubes on a noony, noony meaning vag. Can also mean when the treasure trail is connected to the rest of the pubes. Basically just a whole lot o' pubes everywhere can be called a noonybrow, as long as they're found on de poosay.
Jim: my girlfriend is startin to piss me off.
Paul: why is that Jim?
Jim: Well paul, she just refuses to shave off her noonybrow, she won't even trim the damn thing.
Paul: why is that Jim?
Jim: Well paul, she just refuses to shave off her noonybrow, she won't even trim the damn thing.
by FranklinDelano July 5, 2009