an adjective that describes a woman who is too confident in her opinions and all too quick to share them. Feminine of cocksure.
Person1: Why does Laurelle always rudely and wrongly interject when I am speaking? She almost never understands what I am saying. Does she hate me?
Person2: No. That's just the way she is, she's cuntsure.
Person2: No. That's just the way she is, she's cuntsure.
by Colomba August 16, 2012