noun
Combination of "snide" and "remark". Sarcastic comment(s).
Also snarky (adj.) and snarkily (adv.)

Use of sarcasm or malice in speech. Commonly found in the LiveJournal community. also snarky, snarkiness.

n.

1. Biting, cruel humor or wit, commonly used to verbally attack someone or something.

verbal ingenuineness that is brief, subtle, yet quite stabbing. snark is often marked by deep creativity & use of psychological attack. It employs coldbloodedness and is best served unprovoked. Snark can contain hidden complimentary meaning under a mean face, but it hurts more than it strengthens.

usu found in adjective form: "snarky": making use of snark.

A creature defined in Lewis Carroll's "The Hunting of the Snark". Decribed as those creatures "that have feathers, and bite, and those that have whiskers, and scratch".

smart ass remark

A smart ass remark made by wanna be hipsters who think they cloak their douchebaggery in a self important sense of fey cleverness and ironic witticism.

Usually those who make "snarky" remarks , can expect to receive a punch to the face , which usually results in cries of injustice, inevitably leading to an apology for bleeding all over the aggressors shirt after being punched again for being a whiny little bitch.