Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is an animated gif of a bunch of black guys laughing hysterically at a computer screen/TV. This would be a perfect reaction gif for when somebody online says something that is ridiculous or far-fetched.