What is "grunters"

Usage examples of "grunters".

Boring meat-eaters, ferocious farters, grunters, toilers, industrial oxen, blank-eyed suet-brained party trolls.

Those massed indifferents will learn to quake: Now meanwhile is another mass awake, Once denser than the grunters of the sty.

But during calms the flies of idle aim Less put the spirit out, less baffle thirst For light than swinish grunters, blest or curst.