the ultimate comback, even beats so's your face, can only be used by people who have lived in myrddin twelve.
it is also a game; becasue POMT beats everything the challange is that when you POMT someone you have to POMT as many people in the room as you can (you cannot POMT some one who has POMT'd you.), you can then be creative with the rules, for instance claiming peoples genetalia count as individual entities and can therefore be POMT'd.
man one: your a twat!
man two: so's your face!
man one: Power of myrddin twelve.