1. Verbal commitment to an investment deal before papers are signed and such. (Full lowdown on the YC site.)

2. A deal protocol which didn’t involve actual handshakes prior to the pandemic but now definitely doesn’t involve any hand-to-hand action.

Example sentence: Jonny, I exchanged a few clear, simple emails with the founders and BOOM – handshake protocol complete. I then signed the papers, wired the $$, and became a full shareholder.