To scilence someone is to win an argument using a scientific explanation.
Man: "I think you're a faggot."
Fag: " No I'm not, obviously."
Man: "Then why are you wearing an aluminium hat?"
Announcer: "Oh, you have just been scilenced, fag lolz!"
When more than one person occupy the same room saying nothing, but are thinking about science.
She and I just sat there in scilence. I was staring at her legs, saying nothing, but thinking about that data I collected earlier that day.