When you go out to either: hug someone, shake their hand or any other type of greeting and they respond by shoving their palm in your face...subsequently knocking you backwards, foiling your attempt.
#1) - Yo man....Richie just palmed that skanky ho'
- Hellz yeah man, he don't want none of that.
#2) In Dave Chappelle's "things would look better in slow motion" skit. He palmed a woman 'cause she got in his way.