techopedia.com

VBKvk TIL that happy cake day refers to a person's account anniversary, not their birthday
loRvK TIL of the term "betamaxed" which is used to describe when a superior product loses out in the market to an inferior one as a result of marketing, influence or other factors unrelated to product quality.
EXjd TIL that “percussive maintenance” is the term for hitting something until it works