dude rollercoaster tycoon is so biff
by Luke rfdshgfdjhhgjk March 15, 2008

by narmasmith October 9, 2008

by Bonogal August 3, 2008

by <<INIT>> January 2, 2009

by KB (KDIZZO) March 12, 2005

Black Man 1:Look at David! What a stupid motha' fucka'! Biff that mofo.
*BAM*
Black Man 2: Damn that was satisfing, now suck my dick David!
David: OK :)
*BAM*
Black Man 2: Damn that was satisfing, now suck my dick David!
David: OK :)
by Alec and Pierce June 19, 2006

"Mon" is "come on" in Scottish. "The Biff" is what fans call the Scottish rock band "Biffy Clyro". Mon the biff therefor means something like "Come on Biffy Clyro". Fans scream this at concerts just before the show and in between songs.
by TheLastCrusade October 31, 2013
