There is an old adage that states “many a true word is said in jest.” This phrase literally means that the truth is often found in comic utterances. This expression has been around longer than we appreciate; it is also painfully true.
When this idiom first appeared in English it was likely used in “The Cook’s Tale,” written by Geoffrey Chaucer in 1390. Writing in the medieval dialect of Middle English, Chaucer stated: “But yet I pray thee be not wroth for game; [don’t be angry with my jesting] A man may say full sooth [the truth] in game and play.”