Short for "Ma De Zhi Zhang" which means "fucking retarded" in Chinese. It's usually used to judge those who have done something really stupid or annoying.
1. The naked emperor is showing off his new clothes.
2. A man is complaining loudly that the plane took off (on time) without waiting for him.
Both you can say, "MDZZ".
This is an abbreviation of a Chinese word, "Ma De Zhi Zhang", or pronounced as "Mad The Zee Zhang". People use the word to express their anger or despise. Can be used in any conversations.
An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"
Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."