Using "snide" and "remark" together, a snarkster is someone who uses sarcasm,
irony and/or acerbic (sometimes cruel) wit as a tool or
weapon to express him or herself because they typically suffer from some sort of deep self-loathing or insecurity.
One can often observe snarksters online (blogs and other social media) and immediately recognize their total disregard for anyone who doesn't agree with them, think
like them or "get them".
Since a snarkster lacks originality in his/her humor, they frequently resort to insulting others with impressive vocabulary, behaving condescendingly and displaying a not-so-subtle smugness; basically feeling very pleased with themselves after they dish out their remarks to others.
While snarksters have high IQs and higher educations, they are generally inept at empathy, sympathy or diplomacy. Additionally, they rarely get laid.
In a nutshell, a snarkster is basically the result of a
bitter,
awkward geeky youth growing into a bitter, smug
adult asshole.
Dick and Jane use
irony and sarcasm on occasion. They are witty. Meanwhile,
Timmy thinks that by using both all of the time, he appears cool, clever and
funny. He isn't. He's just a snarkster... and an asshole.