the uncontrollable act of diahorrea in the worst form, usually from a food type that didnt agree with you or an alien food type,!
by craigy_ March 23, 2011
Get the runny-bum mug.Related Words
runny-bum
• runny nose
• Runny Eggs
• runny
• Runny buns
• Runny Babbit
• runny brown
• Runny Cosby
• Runny Tummy
• Runny Babbish