The act of jamming one's finger against the forehead of someone mid sentence and saying "reset" in order to end what they are saying and move onto something more intelligent.
1. "Bean wouldn't shut up, so I reset her. Class was much quieter after that."
2. Bean: "I was watching Jersey Shore last night and"
Nate: "Reset" (action of stabbing forehead with finger)
Bean:"Owe!... what was I saying?"