To go Insanly apeshit on Teamspeak or Ventrilo using a Deep Scottish accent, and an extremely large amount of swears.
Dude he died on Runescape and pulled a Jetdav
To be completely annoying and have no knowledge of grammar, vocabulary and leadership. Rangermicro's tend to drive people to the point of suicide.
"That fagot is so annoying, he's a Rangermicro!"