Stands for My Orange Juice Dammit!!! Can be used when someone is attempting to take your orange juice. Also used in a joking way if someone has just used another, over used, abbreviation similar to omg or wtf and so forth.
1) MOJD! Tanya shouted as her little brother reached for the glass of orange juice
2) Omg! Chrissy said. Mojd! laughed Brian, making fun of her comment.