A person who participates in Ash Wednesday and acts pretentious because they have ash on their forehead and you do not.
John: "hey man do you mind sharing some paper?"
Jim (with ash): "no way, you should've brought your own damn paper"
John: " you ash-hole"
/
John: "hey man do you mind sharing some paper?"
Jim (without ash): "sure man no problem"
John; "thanks friend"