Adjective: snarky (snarkier,snarkiest)
snar-keeUsage: N. Amer, informal- Disdainfully or ironically humorous; scornful and mocking
"his rebellion is the bitter, snarky laughter of all great satirists";
- sardonic
Derived forms: snarkiest, snarkier
See also: sarcastic, sarky [Brit, informal]