Perfect Timing High Five gif
Adam Rifkin stashed this in High Five!
The high five is from the Shia Lebeouf cannibal guy Rob Cantor:
Actually, here's the Rob Cantor music video "All I Need Is You" it's from, at 36 seconds:
Also featured in the oddly satisfying Vince McMahon gif: http://i.imgur.com/8EbC9gh.gifv
3 million Imgur views?!
Imgur comments: http://imgur.com/8EbC9gh