The nurse who's looking after my grandfather is from the ROK. She's married to a soldier and has been in the States for about six years. I taught my gramps a few greetings to give her when she comes in.
"Bop mow-so-go-no? Bop mow-go-yo-so? Bop logo oh no? ... Bop Yoko Ono."
Haha. Cute. Just make it your own, Gramps! Say it with confidence. I trust she'll be able to work out what he means, whatever he comes out with when she comes in.
It's a small world. Unfortunately, just not small enough at the moment.