Desperanto describes a subset of the words of the Urban Dictionary. A word is Desperanto if it has a highly subjective meaning and a very narrow relevance.
To be truly Desperanto, new words and concepts must be idiosyncratic, of limited use, and suggest a close-but-not-quite relationship with an already existing concept...and propably only funny to people in the know.
"Wapanese is a very Desperanto word."
Desperanto is itself a desperanto word, as it resembles both desperado and the language Esperanto...