Definitions:
a crustacean, found chiefly on seashores, with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers.

a louse that infests human body hair, especially in the genital region, causing extreme irritation.

a machine for picking up and lifting heavy weights.

move sideways or obliquely

fish for crabs

grumble about something petty

act so as to spoil (something)