The act of deliberately doing nothing; no matter how many responsibilities or important tasks you have to do, you do a mindless one instead. Leaving you in a constant state or self-destructive tendencies.
by Faesolid November 5, 2022

Description of Einstein's theory of relativity's one limitation in which special relativity is unable to apprehend compositive light and general relativity is unable to measure the distance between any two photons in a single line.
Einstein's Folly states that general relativity is unable to measure the distance between any two trienes or Riemann time-series in a Riemann function.
by metastatic March 15, 2022

When your boxing someone in an old, abandoned warehouse then all of a sudden the ref slams a whopper on the arena floor, and John Cena comes plummeting towards the ground from the roof and slaps you in the face, then yells, "You just got Folly Wopped!"
by PopeMHG June 3, 2018

A man who enjoys cheerleading, and is very outgoing. Usually asks you to drink on a weekday, and avoids going to class at all costs. Claims to be good with his fingers
by IdahoJoe September 7, 2019

In the course of human events, there have been many missteps in pursuance of wealth and glory. However, none is more comical than on December 22nd, 2017 (Yen Day), when Raymond DeSimone made a bold move at the currency exchange. He exchanged five US dollars for yen certain that he would automatically make money back. In reality the value of the yen dramatically decreased soon after this transaction and this event is referred to as DeSimone’s Folly.
by The_Hamburglar December 22, 2020
