One who wastes time watching You Tube videos (particularly when they should be working.)  Computer variant of couch potato.
by namowal March 1, 2009
 Get the You Tubermug.
Get the You Tubermug. a person who use a under mounted gernade launcher or just a gernade launcher and only that to get one shot kills in a video game such a CoD4.
by ButteR45 April 20, 2010
 Get the noob tubermug.
Get the noob tubermug. by YeeterStonker August 31, 2019
 Get the Tuber Simulatormug.
Get the Tuber Simulatormug. when someone did sumthing really cool or crazy or stupid and you don't have a camera all you have to say is that it's a you tuber
by swag4me August 4, 2007
 Get the you tubermug.
Get the you tubermug. A Doom-tuber is someone who creates videos predicting the "end of the world" or Doomsday prophecy, in any numner of different ways, and post them to Youtube.
by Skolman December 14, 2016
 Get the Doom-tubermug.
Get the Doom-tubermug. by theWestHamfan November 22, 2003
 Get the cum tubermug.
Get the cum tubermug. by HeatoN August 30, 2003
 Get the Tubermug.
Get the Tubermug.