A slot machine, Named after the 'old' era of slot machines with the arm on the side you pulled down. This was prior to modern era push button machines.
That slot-jockey has been playin the one armed bandit for hours.
An urban legend about a one armed man that roams the woods at night giving unsuspecting victims one armed handjobs. Known mainly in the upper peninsula of Michigan, more specifically in the keewenaw peninsula in the county of Baraga (named after William Baraga aka one armed willy).
One armedwilly snuck up on me in the woods and boy am I sore