A colloquial initialism for "Mind Your Own Business". The word was coined by science fiction author Eric Frank Russell and first used in his 1951 novella "And Then There Were None..." where it was referred to as "initial slang" by the fictional culture.
by steevithak April 19, 2017

by asrf October 29, 2003

by TokyoWard November 5, 2013

"Don't be so curios, piss off and myob!"
by Aslan (from Hamburg, Germany) August 4, 2003

by ChibiChrissi July 12, 2008
