When you feel like you're about to sneeze and it doesn't come and you feel like your head is about to explode.
John: Oh man I just had a sneeze that didn't come out.
Jake: OH, you mean an Achoo-Stillbirth . I hate those.
John: Yeah, they're almost as bad as blue balls
by Ben Faulding January 8, 2006
Get the Achoo-Stillbirth mug.