A name given to the most beautiful and amazing girl ever. She's is generally perfect in every single way and will remain by your side no matter what. Through think or thin, Katigans will always be the most amazing girlfriends/bestfriends in your life.
Boy 1: Hey, I've got the most amazing girlfriend in the world!
Boy 2: Really? What's her name?
Boy 1: Katigan, duh.