Gif Central boasts hundreds of funny animated gifs and reaction 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 some guy calling "bullshit" with his cellphone. He then puts the phone up to his ear with big smile on his face. This is a great reaction for whenever somebody is lying on the Internet.