To take care of two problems with one action.

A term used to reference cannabis/marijuana/weed.

Getting two things done with one action. Not the same as multitasking.

When "Jesus Christ" was away in the desert, his wife (a Himalayan girl he had married after his traveling and teaching in the mountains, they married when he was sixteen or seventeen) and mother of his small children was accosted by sabateurs who told her "Jesus" was dead in order to lure her out and rape her. Roman soldiers led him to her in a dry river bed, where she was then stoned to death in front of him. The first stone, thrown possibly by her rapist, a lout in the Roman mob, killed her instantly. Jesus did not fight his "prosecution" after that, resigned to his fate because he blamed himself. That's the truth as I have been allowed to see. "Two birds with one stone" then the Romans appropriated his religion, making it their own, full of secrets and lies. Setting this example for us all!

Cutting your penis in half with a katana and then using the two halves to have sex two small pigeons.