Like backseat driving , telling somewhere what to do and how to do it while on the computer. Can be very annoying.
Chris: And you're gonna click over there, then-No no no! Click right there!!
Paul: Man, stop backseat mousing me, I know what to do.
Lindsay: John is so controlling!
Bill: We all know it, whenever I'm on the computer, he backseat mouses me all the time, he needs to chill!