deceitful or sneaky; also synonymous with the terms evil and stupid to the extreme. This is a term that also requires the user to whistle slightly and produce a mild amount of spittle during the enunciation of the word to be grammatically correct in its application.
"She was really schnarky about the fact that she was once a man."
"I am Schnarky...as in Dark Schnarky: your new ruler and master from the planet Komakon. Bow to my power humans least I unleash the power of the Schnah upon you!"
to be sneaky or deceptive
The used car salesman was schnarky!