Thank you BigMurph26 for making this gif.
Stashed in: Awesome, gifs, G4!, Reaction GIFs!, Explosions!, MRW, High Quality gifs, BigMurph26
HighQualityGifs is my new favorite subreddit.
Looks like Andy Kaufman... my favorite of his here:
Here's more about Tim and Eric: http://www.timanderic.com/