Top definition
Something Mike and Aaron like to question the definition of when under the influence of Dextromethorphan and ask me to look up, ultimately making this a paradox.

Umbrose is a word they made up based off of the word Umbra. Which is actually defined.

Two high kids are asking me to define a word they made up, go figure, eh?
"Hey man, hey! What's an umbrose? Look that shit up on Urban Dictionary!"
by Ron is being annoyed March 04, 2007
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