folley

A lack of good sense, understanding, or foresight.
1. An act or instance of foolishness: regretted the follies of his youth.
2. A costly undertaking having an absurd or ruinous outcome.

Your biggest folley was correcting my spelling.

by Sartura June 22, 2006

Ludwig's Folley

When a man consistently tries to create relationships with girls who just want to have sex.

John is always trying to turn his friends with benefits into his girlfriends. Why can't accept it when he has a good thing going? Another classic example of Ludwig's Folley.

by TylerDurden131 November 17, 2014