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 Michael Scott desperately waving him hands / arms around as if to say "don't tell them!". Michael is a character in the US version of The Office. He is portrayed by actor Steve Carell.