You could do that with OO but it would be overkill. A simple subroutine in a module would suffice. See perlsub to learn more about subroutines. Like run-of-the-mill subroutines, OO allows you to create large building blocks out of very small ones. Unlike regular subroutines, they are much more efficient (code wise not speed wise) making the creation of very large, complicated programs possible by making it easier to maintain the code (if you know what you are doiong, of course). I'll leave it to a real OO guru to fill in the details on the advantages of OO over subroutines.

$PM = "Perl Monk's";
$MCF = "Most Clueless Friar Abbot";
$nysus = $PM . $MCF;