Kapparot (Hebrew: כפרות, Ashkenazi pronunciation, Kapporois, Kappores) is a customary Jewish atonement ritual practiced by some Jews on the eve of Yom Kippur. This is a practice in which a person waves a chicken around his or her head. The chickens are then given to the homeless or poor as an act of charity (tzedakah).
Kapparah (כפרה), the singular of kapparot, means "atonement" and comes from the Hebrew root k-p-r, which means "to atone".
On the afternoon before Yom Kippur, one prepares an item to be donated to the poor for consumption at the pre-Yom Kippur meal, recites the two biblical passages of Psalms 107:17-20 and Job 33:23-24, and then swings the prepared charitable donation over one's head three times while reciting a short prayer three times.
In one variant of the practice of Kapparot, the item to be donated to charity is a rooster. In this case, the rooster would be swung overhead while still alive. After the Kapparot ritual is concluded, the rooster would be treated as a normal kosher poultry product, i.e., it would be slaughtered according to the laws of shechita. It would then be given to charity for consumption at the pre-Yom Kippur meal. In modern times, this variant of the ritual is performed with a rooster for men and a hen for women.