A Person, with a lack of Brain Cells, Imagination, Careful consideration and Individuality. They follow every imaginable Trend and when that Trend dies, they immediately follow the next big Trend out there. They are also A perfectly good waste of Sperm and Eggs.
Matt: Slipknot Sucks Dick!!!!!!!
Matt (1 Year Later) OMG SLIPKNOT ROCKS!!!!!1!!!111!!!!!11!
Dave: Matt, you are a Stupid Sheep
Matt (1 Year Later) OMG SLIPKNOT ROCKS!!!!!1!!!111!!!!!11!
Dave: Matt, you are a Stupid Sheep
by Sam Squids April 20, 2017
Get the Sheepmug. Referring to something extremely satisfying, incredibly awesome, or anything impressive. Derived from the abbreviation for bad-ass "BA" since that's the sound a sheep makes.
Example A: "Dude, that back flip was so sheep!"
Example B: "Holy cow, that is one sheep hat brother!"
Example B: "Holy cow, that is one sheep hat brother!"
by Evergreen Tiger February 3, 2012
Get the Sheepmug. 
a fuzzy animal, who provides wool for clothing. Also, a person who simply follows the crowd and doesn't think for themselves.
by Jeana March 28, 2004
Get the sheepmug. by PetesWayUK August 10, 2003
Get the sheepmug. by minimidge July 14, 2006
Get the sheepmug. A large animal that, despite encyclopedia definitions, is secretly controlling the world's governments. Highly intelligent, beware, has telekineses. Welsh and Scottish people fear sheep.
by meeshopork September 17, 2003
Get the sheepmug.