Crabs

A crustacean of the infraorder Brachyura, having five pairs of legs, the foremost of which are in the form of claws, and a carapace.

The meat of this crustacean, served as food; crabmeat

A bad-tempered person.

(in plural crabs) An infestation of pubic lice (Pthirus pubis).

"Although crabs themselves are an easily treated inconvenience, the patient and his partner(s) clearly run major STD risks."

To fish for crabs.

To ruin.

To complain.

To drift or move sideways or to leeward (by analogy with the movement of a crab).

The crab apple or wild apple.

The tree bearing crab apples, which has a dogbane-like bitter bark with medical use.

A cudgel made of the wood of the crab tree; a crabstick.

A movable winch or windlass with powerful gearing, used with derricks, etc.

(obsolete) To irritate, make surly or sour

To be ill-tempered; to complain or find fault.

(British dialect) To cudgel or beat, as with a crabstick