look up any word, like darude - sandstorm:
 
1.
A rule or practice that, while not technically official, is generally agreed upon and followed. (i.e. an unwritten rule)
Guy 1: Dude, what was that? Everyone knows it's not cool to screen peek!

Guy 2: Whatever, who made that rule?

Guy 1: It's consensus law, bro.
by MuteButton October 28, 2011
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