I about choked trying to hold my laughter in while at work. My cube neighbors think I'm crazy sometimes because I listen with my headphones on and they have no idea I'm listening to anything and then they hear me laughing my fool head off over stuff like this. Glad I wasn't drinking at the time or I would have drowned.
This almost sounds like a Zaghareet aka ululation which is a vocal expression used alot in Arab countries to express celebration or to honor someone. It is also commonly used in the belly dance community as well and quite fun to do I might add!
I'm laughing as I write this. I had another NPMP (nearly peed my pants moment) when I heard that. Guess if you did this "call" you wouldn't get warriors coming you would have security/police coming after you.