Letter B is a game usually played when you and your friends are stoned. When someone says a word that begins with the letter "B", you and everyone else gets to punch that person until they say, "Letter B."

It is the most fun when stoned because you tend to not pay too much attention to what you are saying.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.