snark

noun4

1. •
   an attitude or expression of mocking irreverence and sarcasm.

   • She liked his smile. There was neither snark nor megalomania in it, as characterized so many smiles these days. — 2017
2. •
   (literary) The fictional creature of Lewis Carroll's poem, used allusively to refer to fruitless quest or search.

   • Remy said Dad was hunting snarks; at the time, she'd thought it was a euphemism. — 2019
3. •
   A fluke or unrepeatable result or detection in an experiment.

   • Cabrera's Valentine's Day monopole detection or some extremely energetic cosmic rays could be examples of snarks.
4. •
   A graph in which every node has three branches, and the edges cannot be coloured in fewer than four colours without two edges of the same colour meeting at a point.

verb2

1. •
   To express oneself in a snarky fashion.

   • Other would-be Bright Young People, Lytton Strachey snarked, seemed to have “just a few feathers where brains should be.” — 2009
2. •
   (no longer used) To snort.

noun1

1. •
   Acronym of succinct non-interactive argument of knowledge.

   • SNARG vs. SNARK. If we replace the computational soundness with computational Knowledge Soundness we obtain what we call a SNARK, a succinct non-interactive argument of knowledge. — 2019