n, Any obstreperous protest; testimony against an accomplice. “What a roar that muzzler (traitor) put up when I got an s.s. (suspended sentence) and he got hit with a bit (sentenced to prison).”

v. To protest loudly; to complain; to testify against accomplices or to furnish authorities with information leading to their arrest. “That sucker (victim) loved it when I put the bend on (turned down the corner of the key card). But when I hiped him (induced him to increase his bets) and took (swindled) him for two yards (two hundred dollars), he roared murder."

- american underworld dictionary - 1950