When one's significant other is pregnant and the unborn child has the face/spirit of George Washington Carver. When one copulates with the partner, the unborn George Washington Carver fellates one's penis while engaged in the vaginal canal, thereby imparting "peanut dick."
"Carol's pregnant with George Washinton Carver's spirit and he totally gave me peanut dick last night when I was fucking her."
When a man sticks his fully erect penis into a jar of creamy peanut butter, coating the head and shaft. The woman then attempts to lick the penis clean.