One of the more geeky types of rickrolling. It involved agreeing to give someone control
computer using remote desktop
assistance). The person gets excited knowing you will
be locked out from
seeing what happens on screen and with them
in full control
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.