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1.
asdf's nefarious alter-ego. Reportedly seen hanging out in bars at late hours of the night. May be armed.

Additionally, an alternative to asdf and aoeu when typing. Often used as a substitute for an actual name or title, either to avoid giving out information or because coming up with a more descriptive name would be too time-consuming.
"Please enter your name:" "sdfg"
unsigned int sdfg = 5;
by __sdfg April 18, 2004
355 178