passgrip means A special grip of the hand used by a freemason during a handshake, covertly communicating his freemason status to the other person. Lexicurio rates it Sui generis — a strength score of 92 out of 100.
Etymology
From pass + grip.
noun
- A special grip of the hand used by a freemason during a handshake, covertly communicating his freemason status to the other person.