וְאֵת֙ שׁ֣וֹק הַיָּמִ֔ין תִּתְּנ֥וּ תְרוּמָ֖ה לַכֹּהֵ֑ן מִזִּבְחֵ֖י שַׁלְמֵיכֶֽם׃
And the right thigh shall ye give unto the priest for a heave-offering out of your sacrifices of peace-offerings.
Read kabbalistic (mystical) interpretation of Leviticus 7:32: and classical mystical sources.