2. Replacement for SMH (Shaking My Head).
3. Can be used to show shock caused something amazing, disbelief at how damn stupid something somebody said was, and just utter surprise.
John: You know how the Texans were losing by 2 touchdowns?
John: They tied it up. Then lost in overtime.
Kevin : DMJ.
*Andre Johnson makes an amazing catch*
Any person : DMJ!
Guy : Why're you back with him after he cheated on you?
Hottest girl in school : Because he has a car.
Guy : DMJ...