Some people have no idea what that is. I thought I had coined the phrase, but apparently not.
It's what happens all day long if you eat too much chocolate the night before...
You have to run for your bathroom. All day long.
Then you get them the next day if you decide that the chocolate (probably cross-contamination with corn) didn't cause it in the first place and you're gonna try it again.
clipart from http://www.4yeo.com/pagelements/icons/signs/index.htm