J. Random /J rand'm/ n.
[common; generalized from J. Random Hacker] Arbitrary;
ordinary; any one; any old. `J. Random' is often prefixed to a
noun to make a name out of it. It means roughly `some particular'
or `any specific one'. "Would you let J. Random Loser marry your
daughter?" The most common uses are `J. Random Hacker', `J.
Random Loser', and `J. Random Nerd' ("Should J. Random Loser be
allowed to gun down other people?"),
but it can be used simply as an elaborate version of random in any sense.