bargaining chip

:  an agreement between parties settling what each gives or receives in a transaction between them or what course of action or policy each pursues in respect to the other

:  something acquired by or as if by negotiating over the terms of a purchase, agreement, or contract

:  an advantageous purchase

:  to negotiate over the terms of a purchase, agreement, or contract :  haggle

:  to come to terms :  agree

:  to bring to a desired level by bargaining

:  a small usually thin and flat piece (as of wood or stone) cut, struck, or flaked off

:  a small piece of food: such as

:  a small thin slice of food

:  to cut or hew with an edged tool

:  to cut or break (a small piece) from something

:  to cut or break a fragment from