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