The workers used the threat of a strike as a 'bargaining chip' in their negotiations for a new contract.
He 'has had a chip on his shoulder' ever since he didn't get the promotion he was expecting.
She 'chipped' in for par. [=she made a par by hitting a chip shot that went into the hole]
(..) - Microprocessors. We'll probably be at war with the Chinese in -odd years... ...and Costello is selling them military technology. Microprocessors, chips, computer parts. Anybody says anything about anything like that... ...you let us know. So who did the two guys from Providence? (..)2006 The Departed