subs. (old).A thief who intruded on the profits of young sharpers, by claiming a share.
1611. MIDDLETON, The Roaring Girle, Old Plays, vi., 113. Then theres a CLOYER, or snap, that dogs any new brother in that trade, and snaps,will have half in any booty.
1659. The Catterpillars of this Nation Anatomised. [CLOYER = a pickpocket.!