A "flatulence burn" is the result of extremely hot gas emitted from the sphincter, which causes minor to extreme irritation in the area around the anus. In extreme cases, blistering can occur around the anus and when gas is emitted, encapsulated by an undergarment, blistering may occur in areas well beyond the anal region (including but not limited to ones private parts). A "flatulence burn" is often accompanied by the splatter of liquid or solid feces in the vicinity of the gas when emitted.
Johnny had stomach cramps all morning after eating hot peppers for breakfast. While walking to class, he passed gas and immediately dropped to the floor. After being brought to the nurses office and hearing that he may have a "Flatulence Burn", Johnny asked to go to the bathroom. He could not sit on the toilet and had to throw his underwear away.