You may or may have not yet heard of this term, but I just read it at several articles today. Maybe it was because of the April Fools Day that have just passed. So what exactly is Rickroll? Basically it's a prank or an internet meme that involves the song "Never gonna give you up" from Rick Astley (in case you don't know, he's a recording artist way back in the 80s).

Rickrolling is an Internet meme involving Rick Astley's music video for his song "Never Gonna Give You Up". In a Rickroll, a person provides a link they claim is relevant to the topic at hand which actually takes the user to the Astley video. It can also mean playing the song loudly in public in order to be disruptive.

The practice began as a variant of an earlier prank called duckrolling, in which a link to a popular celebrity or news item would instead lead to a photoshopped picture of a duck with wheels. By May 2007, the practice had become widespread, and it eventually began to receive some coverage in the mainstream media.

source: wikipedia

 

So basically it works like a normal prank, you are being presented by a valuable video link. But instead of playing the video, the Rick Astley MTV is played instead. Actually I was quite naive when I was reading a blog post, I really didn't expect that the video itself was the prank I was like thinking, WTF is happening? It was until I read the comments and searched Rickroll in wikipedia. You can try it out here (a rickroll video link):

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Personally I like the music of Rick Astley but he really did looked hilarious on that video...