crab

(noun) decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers.

(noun) a quarrelsome grouch. Synonyms: crabby person.

(noun) (astrology) a person who is born while the sun is in Cancer. Synonyms: Cancer, Crab.

(noun) the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22. Synonyms: Cancer, Cancer the Crab, Crab.

(noun) the edible flesh of any of various crabs. Synonyms: crabmeat.

(noun) a louse that infests the pubic region of the human body. Synonyms: crab louse, pubic louse, Phthirius pubis.

(noun) a stroke of the oar that either misses the water or digs too deeply. Example: "He caught a crab and lost the race."

(verb) direct (an aircraft) into a crosswind.

(verb) scurry sideways like a crab.

(verb) fish for crab.

(verb) complain. Synonyms: gripe, bitch, grouse, beef, squawk, bellyache, holler. Example: "What was he hollering about?."