jargon.artrocity.com
New Hacker's Dictionary the Jargon File v 4.4.6
[from network protocol programming] To perform an interaction with somebody or something that follows a clearly defined procedure. For example, “Let's do protocol with the check” at a restaurant means to ask for the check, calculate the tip and everybody's share, collect money from everybody, generate change as necessary, and pay the bill. See protocol.