stool pigeon

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And the main difference between a homing pigeon of old, and a stool pigeon of today?
Most of these guys turn themselves into stool pigeons for the first brassy female who gives them her blessing, usually a svelte take-no-prisoners blond who bears a striking resemblance to right-wing attack poodle Aim Coulter.
Although it would be more apropos for him to troll for corpses in the East River or hunt for stool pigeons.