God's Handle
The act used to gain leverage in the doggy style position. It involves inserting one's thumb into the anus of a female and gripping her lower back with the other four fingers, forming a handle, in order to thrust her body onto one's penis repeatedly.
After sucking my thumb for lubrication, I stuck it in Katie's ass and took hold of God's Handle so that I could gain more momentum as I pounded her into multiple orgasms.