red bum 

When you are having sex and you keep smacking your partners ass so that it turns red like a baboons.

I was having sex with Taylor and she kept telling me to smack her ass, she went to pee when we finished and she had massive case of red bum!

red bum by Kingkoopa172 January 3, 2008

red bumps 

The resulting product that develops from a woman shaving her vaginal region for purposes of appealing to the male gender. Sometimes itchy, and always awkward but never contagious.

1. Lauren was going to fool around with Ray, but was skeptical because she didn't want him to see her awkward red bumps.
2. Do you have 17 red bumps like me?

red bumps by kaylauren October 28, 2005

redbum 

When your bum is irritated and uncomfortable and feels as if it is red. One may find they have a case of 'red bum' is the anus is irritated and almost inflamed.

"Well, darn Larry, last night I was eating burritos and drank about 30-something beers, had redbum all day."

Bum: I'm so sore and embarrassed *cheeks blush*

redbum by Red Bum Jihad August 10, 2013