This is an animated gif of Missouri actress Ellie Kemper bobbing her head as she listens to music. Kemper is best known for portraying the character Erin Hannon in The Office (US version).
This is a funny animated gif of WWE wrestler Rob Van Dam being hit with a chair by a masked man sitting in the crowd. Much to the laughter of everyone, the attacker stood up and took off his mask, only to reveal that he had another mask underneath. Best disguise ever.
This is a great animated gif of a glitched out WWE (WWF) referee giving an awkward thumbs up after his arms bend around his back. I've seen this one being used with titles such as "When I'm extremely drunk and my friend asks if I want another drink." This is from one of the several WWE related games out there. I'm not entirely sure what version.
This is a funny animated gif showing an edited scene in Predator (1987) where Dutch shakes the hand of Dillon, only for it to turn into an arm wrestling match. Obviously, the levels of testosterone reached critical levels, resulting in an explosion that leveled the surrounding area. Dutch was played by Arnold Schwarzenegger, whereas Dillon was portrayed by actor Carl Weathers.
This is a great animated gif of Floyd Mayweather showcasing his defensive abilities / counter-punching as he easily dodges his opponents attacks.
This is an animated reaction gif of Miss J from America's Next Top Model looking shocked / surprised. Miss J, real name J. Alexander / Alexander Jenkins is a well known American TV personality who was a judge on the TV show America's Next Top Model.
This is an animated reaction gif of Lucille Bluth saying "I don't understand the question, and I won't respond to it." This is from the TV show Arrested Development.
This is an animated reaction gif of Farmer Hoggett saying "That'll do." This is from the movie Babe (1995), which tells the story of a pig that wants to become a sheepdog. Hogget was played by James Cromwell. The entire line was "That'll do pig. That'll do."
This is an animated reaction gif of actor George Clooney turning around in surprise and repeatedly blinking / lifting his eyebrows. This is from the movie The Descendants (2011), in which Clooney played the character Matthew "Matt" King.
This is an animated gif of Internet celebrity Antoine Dodson saying "You are do dumb. You are really dumb. For real." Dodson sprung to fame after he gave a dramatic TV interview following the attempted rape of his sister in one of the housing projects in Huntsville, Alabama. His interview was immediately auto-tuned in a number of remixed songs.
This is a gif of a guy vomiting before quickly recovering and clapping in approval. It can be used as a reaction gif whenever you see something that is sick / wrong, yet you can't help but applaud / like it. This is from the movie The Incredible Burt Wonderstone (2013). This particular scene occurred when Jim Carrey's character Steve Gray slept on a bed of hot coals.