a person or thing that rips
Also, ripper bill, ripper act. a legislative bill or act for taking powers of appointment to and removal from office away from the usual holders of these powers and conferring them unrestrictedly on a chief executive, as a governor or mayor, or on a board of officials.
a killer who dispatches and often mutilates victims with a knife or similar weapon.
Mining. a hooklike tool, attached to earth-moving machinery, for tearing away ore, rock, etc.
Chiefly British Slang. something especially strong, fine, or good of its kind.