Iceberg's Rude Remark

Listen up, dumbo! The joke is that the iceberg, after sinking the Titanic, tells it to "Go fuck yourself...at the bottom of the sea." It's funny because the iceberg is being rude and insensitive after causing a disaster. The iceberg is made of frozen water, is big, and floats, which makes it dangerous to big boats like the Titanic, which a lot of people died on because it sank.