Heenan had many classic moments in WCW. 

My personal favorite was him trolling the other announcers (I want to say Tenay and Dusty, but I could be wrong) during Hog Wild. 

In the first two matches, EVERY near fall, Heenan would shout at the top of his lungs, ONE! TWO! HE GOT HIM! Every time. Even if he stepped all over the others talking. He then continued that into the third match between Bull Nakano and Madusa. ONE! TWO! HE GOT HIM!

By about the third or fourth time, Tony had enough and called him out on it. And Heenan had a really good laugh about it.