by gayfortacos November 14, 2016
Get the fsmug. Fucks Sake. Colloqiual (usually Eastern Scottish) internet acronym.  Almost identical to wordffs/word but lazier.
by wadie May 15, 2003
Get the fsmug. Acronym for Fucking Shit
by benhpark January 6, 2008
Get the fsmug. An abbreviation for Formspring.me , a website where you can ask questions to anyone who has an account, either anonymously or publicly.
by mdl3clw December 1, 2010
Get the fsmug. 

