The phrase "secret handshake" refers to a special gesture or action that members of a particular group use to recognize each other or show that they are part of a secret or exclusive club or organization. Full definition
«Public pension fund investments should not carry even the faintest whiff of secret handshakes in the shadows with politically connected influence peddlers,» Lockyer said in a news release. (calpensions.com)
Do you honestly think that there is some grand gay conspiracy out there, all organized with secret handshakes and a calendar of events with some end goal of... what? (religion.blogs.cnn.com)
The crazy doesn't stop there — they learn secret handshakes, code words, specific chants that they are supposed to «remember» AFTER death to get to the other side. (religion.blogs.cnn.com)