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