grouch(n = noun.person) churl, crank, crosspatch, grump - a bad-tempered person;
is a kind of disagreeable person, unpleasant person
has particulars: crab, crabby person, fire-eater, hothead, misanthrope, misanthropist
Derived forms verb grouch₁, adjective grouchy₁

   grouch(v = verb.communication) grumble, scold - show one's unhappiness or critical attitude; "He scolded about anything that he thought was wrong"; "We grumbled about the increased work load"
is one way to complain, kick, kvetch, plain, quetch, sound off
Derived form noun grouch₁
Sample sentences: Somebody ----s; Somebody ----s PP

   A bad-tempered person. [WordNet 1.5]

   to complain habitually, especially about minor or routine annoyances. [WordNet 1.5]

grouch, v. & n. colloq.
--v.intr. grumble.
--n.
1 a discontented person.
2 a fit of grumbling or the sulks.
3 a cause of discontent.

Etymology:
var. of grutch: see GRUDGE

N  sullenness, morosity, spleen, churlishness, irascibility, moodiness, perversity, obstinacy, torvity, spinosity, crabbedness, ill temper, bad temper, ill humor, bad humor, sulks, dudgeon, mumps, dumps, doldrums, fit of the sulks, bouderie, black looks, scowl, grouch, huff, sullen, sulky, ill-tempered, ill-humored, ill-affected, ill- disposed, grouty, in an ill temper, in a bad temper, in a shocking temper, in an ill humor, in a bad humor, in a shocking humor, out of temper, out of humor, knaggy, torvous, crusty, crabbed, sour, sour as a crab, surly, moody, spleenish, spleenly, splenetic, cankered, cross, crossgrained, perverse, wayward, humorsome, restiff, restive, cantankerous, intractable, exceptious, sinistrous, deaf to reason, unaccommodating, rusty, froward, cussed, dogged, grumpy, glum, grim, grum, morose, frumpish, in the sulks, out of sorts, scowling, glowering, growling, grouchy, peevish.