by Mirosui Onitsaki June 6, 2005
Get the stfusmug. 
by XxZoexX July 27, 2020
Get the stfumug. by johnisthegame February 27, 2003
Get the stfumug. 
1.) Save The Freaking Unicorns
2.) Say, Thanks For Understanding
3.) Short Term Follow Up
4.) Special Task Force Union
5.) Stop Talking Find Username
6.) Slippery Teflon From Utah
7.) Stinky Telnet Fell Under
8.) Special Transitory Food Units
9.) Stealing Turkeys From Uncle
10.) Superior Tactical Fragging Unit
11.) Silence That Followed Us
12.) South Texas Farming University
13.) Southern Tenant Farmers Union
14.) Scrawny Two Faced Underling
15.) Samurai Training Finished Unsuccessfully
16.) Show Them Fury Unleashed
Or the most common definition:
17.) Shut The Fuck Up
The common response to the previous 16 definitions.
2.) Say, Thanks For Understanding
3.) Short Term Follow Up
4.) Special Task Force Union
5.) Stop Talking Find Username
6.) Slippery Teflon From Utah
7.) Stinky Telnet Fell Under
8.) Special Transitory Food Units
9.) Stealing Turkeys From Uncle
10.) Superior Tactical Fragging Unit
11.) Silence That Followed Us
12.) South Texas Farming University
13.) Southern Tenant Farmers Union
14.) Scrawny Two Faced Underling
15.) Samurai Training Finished Unsuccessfully
16.) Show Them Fury Unleashed
Or the most common definition:
17.) Shut The Fuck Up
The common response to the previous 16 definitions.
by DarkDragon59 December 16, 2011
Get the STFUmug. by jujujuju100982563009lol August 18, 2013
Get the stfumug.