Something fabulous. Being awesome or ace stuffs is also acceptable. For example: Frank Iero can easily be classified as shnabadoo.
"Omg! That bag is sooo shnabadoo!"

"Wtf, dude?! Can't you be a bit more shnabadoo?!"

"Layla & Lawren are totally shnabadoo!"
by Laylaaaa Iero. February 26, 2008
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