Definitions by MikeDidIt
Sfart
A fart during which some fecal matter exits the ass effectively causing the person who farted to construe his or her face in such a way that it conveys to others what has happened. If no fartee notices that the person who farted has shat his or herself, than no sfart has occured, this situation is known as a shart.
During a public speaking presentation I sfarted and people starting throwing toilet paper at me while laughing hysterically.