It is when you are sitting there minding your business and all of the suddun you start sweating because you have to shit so bad. if you don't make it to a toilet you will shit yourself. it usually happends in the most inconvenient moment like being on a first date with someone or you are in mexico with no indoor plumbing or in an area with onlt johnny on the spot available.
To tell bold faced lies to a large audience of people who believe in you, fully knowing that your going to screw them over in the end.
Employee: "I can't believe that our CEO just got away with telling the entire company that our future is secure; we all know that he just sold all of his stock, it was on MSNBC!"
Employee 2: "What a Sneaky Obama, we're pretty much screwed aren't we?"