Fiftylevin

A numerical number used to describe the exasperating amout of times one needs to be told something over and over again. Often used when yelling at children, the slightly demented or the occasional rum dumb. Fiftylevin is a last ditch effort to try and make the intended target see the error of their idiotic and stubborn ways.

Reginald! "If I've told you once I've told you fiftylevin times to stop putting your tongue on that frozen flagpole!"