One of the more geeky types of rickrolling. It involved agreeing to give someone control over your computer using remote desktop(NOT remote assistance). The person gets excited knowing you will be locked out from seeing what happens on screen and with them in full control, begins planning mischeivous schemes.
What they don't know is that in reality, you are forwarding your remote desktop port to a virtual machine which also has the Rickroll video playing in fullscreen.
The person rubs their hands together as the connection is being established, preparing to vandalize your computer. Instead they are greeted with a fullscreen Never Gonna Give You Up.
He was trying to socially engineer his way into making him give control of his computer. Instead he got VMrolled.