No it wasn't - HHH started that at house shows in late 1997 when he was injured.
He was the guest ring announcer for Shawn's house show matches prior to DX forming and his intro went something like
"For the thousands in attendence and the millions not watching at home since there are no television cameras in the building, ladies and gentlemen, let's get ready to suck it!"
Road Dogg's "ladies and gentlemen, boys and girls" spiel was just a play on the speeches that circus ringmasters used to give.