Usar "plug up" en una oración

1. The rock, nowhere near as round as it had first appeared, had been nothing but trouble as he had attempted to plug up the hole at the bottom of the lake

2. What an idiot he had been! He had been searching for a large, round rock, and all he had seen, during his several passes through the cave, was a throne! One can’t plug up an underwater cavern with a kingly throne

3. Jane held the plug up high out of his grasp