Synonyms for crab

noun

• a quarrelsome grouch
• a louse that infests the pubic region of the human body
• the edible flesh of any of various crabs
• the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
• (astrology) a person who is born while the sun is in Cancer
• a stroke of the oar that either misses the water or digs too deeply
• decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers

verb

• complain
• direct (an aircraft) into a crosswind
• fish for crab
• scurry sideways like a crab