Noun
xyzzy (uncountable)
Used as a placeholder word or metasyntactic variable.
By typing "xyzzy" at the appropriate time, the player could move instantly between two otherwise distant points. Source: Internet
In most versions of the Ingres dbms "select xyzzy( '' )" returns "Nothing happens." Source: Internet
The origin of the word "xyzzy" has been the subject of debate. Source: Internet
Xyzzy by itself would print the status of the last "xyzzy on" or "xyzzy off" command. Source: Internet