1. In a flowing or floating manner. A word mostly used by teenagers (K-chan) who can't think of a better adjective.
2. A word that happens when you try to say fluffy and blowhole in the same sentence.
1. "I like the japanese language because it sounds so flowful! Oh, and look at that girl, she's wearing such a flowful dress! ^.^"
2. "What the Flowful!"
"Dude, did you just try to say fluffy blowhole? "