1. An abbreviation of "what's up?"
2. A surefire way of killing a conversation before it's even begun.
2. A surefire way of killing a conversation before it's even begun.
Bill: Hey.
Ted: Hey.
Bill: Sup?
Ted: Nm, u?
Bill: Nm.
*close conversation window after 30 mins of inactivity*
Ted: Hey.
Bill: Sup?
Ted: Nm, u?
Bill: Nm.
*close conversation window after 30 mins of inactivity*
by Noiree February 26, 2010
Get the supmug. 
you have just been friendzoned.
by jess26 October 15, 2014
Get the supmug. What one would say in one's company in the morning of a glorious sunny day in Buckinghamshire, England.
Sup Jeeves, how are you feeling this fine morning? After I butter your scone would you like me to fetch your 'Fox Hunting monthly' magazine and open it to the 'letters' page?
by Muckle Flugga September 24, 2008
Get the supmug. 
by thestig8 July 14, 2016
Get the Suppingmug.