1crab 
/ˈkræb/ noun
plural crabs /ˈkræb/ noun 1 a [count] : a sea animal that has a hard shell, eight legs, and two large claws — see color picture; see also hermit crab, king crab
b [noncount] : the meat of a crab eaten as food
▪ We had crab for dinner. 2 crabs [plural] medical : a medical problem in which very small insects (called lice) live in the hair surrounding a person's sexual organs 3 [count] US, informal : an unhappy person who complains a lot : grouch
▪ I don't know why she's been such a crab lately.
b [noncount] : the meat of a crab eaten as food
▪ We had crab for dinner.
▪ I don't know why she's been such a crab lately.
