splutter

when you cant quite finish what you are doing or saying, due to an express of air

1)whilst in the middle of a funny joke a burp takes you off course.
2)whilst in serious conversation you cough and end up spitting in the face of your mate.
3)whilst in mid-excreetion, a pocket of air channels out your backside causing splutter on the rim

by Sam W. Ward April 01, 2008