Stashed in: Reaction GIFs!, Seinfeld, Back to the Future, Upvote! Downvote!
Heh, I wish all downvotes work this way!
Will look for more downvote gifs to add here...
Back to the future.
Kramer downvote gifs
Pumpkin Lightsaber Ninja Slice gif
Good Burger I know some of these words gif
You're one of us. ~Almost Famous gif
Uh...No - George Costanza