When someone deliberately links to the Rick Astley
music video of "Never Gonna
Give You Up" via youtube on internet forums. Originally popularized in the World of Warcraft community forums, it has spread to many other forums across
It can be either a straight link or come with a deviating description prior to the link. When someone clicks on it, they are "RickRolled"
as /RickRoll, RickRoll'd, Rickrolled, etc.