1. Vapor emitted from one's anus. Also known as a fart. Highly offensive, and highly dangerous.
2. A cute nickname for the pokemon Vaporeon
1. Todd made a vapor poo that was so bad my dog couldn't even handle it... so he died.
2. Ew will! I know you're just a dog but please don't vapor poo on top of me...ok?
3. I choose you, Vapor Poo!