Any shit that scientists cannot explain, like atoms changing characteristics to identical ones when they're totally separate and disconnected, or measuring the width of hair by imagining how wide it is. Using lasers. Yeah, I know, wtf.
Another spelling of "snarkiness," which refers to the sorts of abusive responses a dumb or poorly considered question or post tends to get in certain forums.
Condition resulting in verbal response reflecting mockery and intentional condescension, often times found when responding to nonsensical progressive, politically correct comments. Use of sarcasm often times empowers snarkiness.
Joe Cool used snarkiness responding to a buffoon who posted liberalgibberish on a Politico thread on the internet.