'Wave breast' in the Bible

And the wave breast and heave shoulder you shall eat in a clean place, you, and your sons and your daughters with you. For they have been given for your portion and the portion of your sons out of the sacrifices of peace offerings of the sons of Israel.

The heave shoulder and the wave breast they shall bring with the fire offerings of the fat, to wave for a wave offering before Jehovah. And it shall be yours, and your sons' with you, by a statute forever, even as Jehovah has commanded.