Definition of snarks:
(n) :
an attitude or expression of mocking irreverence and sarcasm.
(v) :
To express oneself in a snarky fashion.
(n) :
(literary) The fictional creature of Lewis Carroll's poem, used allusively to refer to fruitless quest or search.
(n) :
(particle physics) A fluke or unrepeatable result or detection in an experiment.
(n) :
(mathematics) 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.
(v) :
(obsolete) To snort.