What isn't deeum? You can be a deeum, you can deeum, and you can feel like deeum. It can be used to describe any inner feeling. Using this word after any situation, no matter how bad, will instantly make the situation better. Your mom died? Deeum.
1) A person hard of hearing, or completely deaf, saying the word dildo
2) An expression of slight sadness.
3) A word added to movie titles or song lyrics to make them more funny
Also pronounced "DeeOWdo" with the OW like in cow.
"Yo I got a 74 on my math test...deeuwdo"
"Awwww deeuwdo"
"Teen Drinkin' is very bad, yo I got a fake I Deeuwdo"