1) Internet meme 1) Meme 
Rickrolling is an Internet meme involving the music video for the 1987 Rick Astley song `Never Gonna Give You Up`. The meme is a bait and switch; a person provides a hyperlink which is seemingly relevant to the topic at hand, but actually leads to Astley`s video. The link can be masked or obfuscated in some manner so that the user cannot determ......