add this to your popup files under nicklist then make a file called insults and save it as a .txt file in your mirc folder then fill it with insults. then connect to a server and right mouse click on a nick and hit Random Insult. Fun for pissing people off lol.
.Random Insult:say Hey $$1 $+ ! $read($shortfn($mircdir) $+ insults.txt)