Gay.pl is the most useful irssi script you will ever come across. EVER.
First of all you should go to www.gay.pl (which is clearly a link to Poland's Gay website).
After you've spent many hours there, you should also take a look at http://gruntle.org/projects/irssi/gay/ and place the latest version of gay.pl into your very own .irssi/scripts folder. Now all you have to do is /run gay.pl and you're totally GAY! \o/
To view all of gay.pl's options, just type /gay -help, and you'll see the wide variety of flags the script has to offer.