Pocketed, as a billiard ball

• Immortal "Suns That ___ Below"
• Made like the Titanic
• Putted into the hole
• Collapsed
• Lost seaworthiness
• Went to the bottom of the ocean
• Went down like a stone
• What the Lusitania did
• Completed, as a putt

WordNet Word definitions in WordNet
See sink