The saying liar, liar pants on fire is part of a longer children’s rhyme that’s been around since 1841 or so. There are several different versions of what comes after the line liar, liar, pants on fire, such as “Hanging by a telephone wire / While you’re there, cut your hair / And stick it down your underwear.” A listener in Indianapolis, Indiana, reports finding other taglines, such as “Stick your head in boiling water,” and the milder “Wash your face in dirty water.” This is part of a complete episode.