To withdraw from a commitment or position.
To take a less aggressive position in a conflict than one previously has or has planned to.
To backpedal, desert or withdraw (also used with out).
Various marine crustaceans, rock lobster; especially Jasus lalandii, the Cape crawfish.
Various freshwater crustaceans, crayfish.
A slur against Anglo-Canadians used in some corners of Quebec (including the Gaspé).