definition of
crab

[1] #1 crab n. decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers. wn

[2] #2 crab v. direct (an aircraft) into a crosswind. wn

[3] #3 crab v. scurry sideways like a crab. wn

[4] #4 crab n. [crabby person] a quarrelsome grouch. wn

[5] #5 crab v. fish for crab. wn