1. A way to show somebody you truly love them. 2. The gift that keeps on giving. 3. A link that sends you to the gates of Hell, or something reasonably close to it. 4. Assuming the position of tubgirl, an act of imitation. 5. Goatse's wife.
"To be tubgirl, is to be closer to the infinite, and to be closer to solving the enigmas of life's challenges. 'Tis truly an amazing experience." -G.P.