What a hoot! The explanation is kinda graphic.. I leave it to others to go to Wikipedia themselves.
There is a lot of folklore in computer terminology. I remember FUBAR from the 1960's as a military term which although somewhat disputed, I figure is the origin of the ubiquitous foo() and bar() coding examples.

I did correct my 2 "e" spelling in another post - thanks for that!

In reply to Re^5: Syntax Perl Version support $c = () = $a =~ /\./g by Marshall
in thread Syntax Perl Version support $c = () = $a =~ /\./g by h2

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