/dow/ [German Fidonet] D"ummster Anzunehmender User. A German

acronym for stupidest imaginable user. From the

engineering-slang GAU for Gr"osster Anzunehmender Unfall

(worst foreseeable accident), especially of a LNG tank farm

plant or something with similarly disastrous consequences. In

popular German, GAU is used only to refer to worst-case

nuclear accidents such as a core meltdown.