Fucking retard.FRThe MDZZ here are the initials of the words' pinyin spellings (Ma De Zhi Zhang). Similar pinyin with alternate tones: 玛德制杖、麻的纸张 etc.
Incidentally, the 智障 portion is sometimes changed to some iconic less-bright characters, such as Cirno and Aqua. 妈的阿库娅
