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A person who watches a game show then yells back at the tv when a contestant makes a stupid decision instead of making the obvious choice.
Rob was watching The Price Is Right. The contestant was playing Ten Chances. The contestant wasted 6 chances on guessing the price of the second prize, so Rob was yelling back at the tv and saying, "You freakin' idiot! You know that recliner isn't $709! Dammit dude...Write $750 in the box.! Arrrgh...Stop wasting your chances because you wont even get to the car"!

The contestant loses the game and the price revealed $750 for the recliner. Rob turns to Mike and says, "Dude..I need to quit being a game show sideline coach and go on this damn game show because I know I would win"!
by jokester75 February 28, 2014
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