Riad

Derrived from Cryptophis nigrostriatus, also known as the black-striped snake most commonly found in northern Africa and Pakistan. This term referes to snake like behaviour. This includes, but is not limited to backstabbing your friends, skipping your friends and putting others over your friends.

That is such a Riad move, he skipped us for a BBQ.
He didn't want to work together with us on this project, he's showing his Riad side again.