inter. Basically when one wants to freak out his friends, he will say mrowr or make other noises such as meows, purring, or hissing usu. coupled with licking of the hands or scratching of the face of the listener
Person:"So whats up?"
Friend:"Mrowr?" (Scratches person's face)
Person:"GAH!!! MY FACE!!! WHY HAVE YOU SCRATCHED ME MY FRIEND?"