Meaning of secret handshake | Babel Free

Definitions

1. A distinct form of handshake, often with the fingers or thumbs specially positioned, that covertly indicates a person's membership of a club or clique.
2. Any shibboleth or distinguishing sign.
   broadly, figuratively

Examples

“Stuart Auerbach, who covered legal affairs at the Washington Post⟳, has speculated that lawyers' language serves “as a secret handshake in a fraternity, letting others know⟳ you are one of the tribe.””

“A signal that is not used by the population at large can be used by mutant members as a kind of secret handshake to identify⟳ an in-group. Mutants can then cooperate with those who share⟳ the secret handshake and defect against the others.”

CEFR level