By making the "rock" (see: rawk) hand signal, and screaming out "ROCK LOCK!!!111!!!!", one intertwines the opposite fingers and binds them with the other really fuckin' cool person's hand.

Handshake style greeting used by rockers. Also used to replace the high five as a rockin' alternative.

See step-by-step pictures: http://www.clubber-lang.co.uk/5.html