the red stain, or spot, on the back of pants (or skirts and such) if a girl didn't have a pad/tampon on and leaked.
The girl said to her friend, "Oh my gosh, look at her ass, she got a rhea red."
by anonyguyX April 07, 2009
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.×