When you are eating a chick out and she gets her period, and as you are pulling away she lets out the "Mega-Queef" and the period blood sprays all over your face.
I was hooking up with his hot ass chick and she gave me a RedBeard, I'm still trying to wash it off.
Male who has red facial hair despite having a completely different hair color (typically brown). On a "Captain Redbeard" the red facial hair is typically prominent yet patchy and frequently has no genetic justification.