'Relieving' in the Bible

Ehud was gone when Eglon’s servants came in. They looked and found the doors of the upstairs room locked and thought he was relieving himself in the cool room.

Starting about noon, Elijah began to tease them: "Shout louder! "He's a god, so maybe he's busy. "Maybe he's relieving himself. "Maybe he's busy someplace. "Maybe he's taking a nap and somebody needs to wake him up."