You are utterly confused by people yelling “Allan, Allan, Allan!” through the office?! Look no further: Here is the meme’s origin video.
Or maybe the name is Steve? This hilarious video was produced by the British TV station BBC’s aninmal documentary division. The producers recycled some of their valuable footage and re-dubbed it with some hilarious fictional animal voices. The video is sometimes a bit hard to understand since the new dub features a very heavy british accent. However, you could still make out the main protagonist quite easily.