What does ‘idiot-stick’ mean?

( n ) A person who acts stupid That idiot-stick really does some dumb things.
( n ) A stick so simple to use that an idiot can use it. If you don’t know how to space tiles, you can use the idiot stick.
( n ) An imaginary stick that makes anyone hit by it stupid What a stupid thing to say! Were you hit by the idiot stick?