Unidentified F_______ Objects

Watch the video to fill in the blank. (This is the first Conk Creative-produced "viral" video.) Oh, and please share it with your friends. I mean, only if you think it's funny. Or even if you don't. Because you can't force a video to "go viral," so that's exactly what I'm trying to do. Does that make sense?

P.S. It looks a little blurry and off-center in the embed. For the best-quality version, click here and choose "watch in HD."