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]
(..) It's almost time for the presents. All right, gangway, gangway. And this is how we find out what is in those presents. Okay, who's hungry? Here come the chips! I've got Cool Ranch and barbecue! What in the world... Oh! I thought I told him to pick these up. (..)1995 Toy Story