I don’t know how this word is spelled and to be honest i’m not even sure if it is a real word, but I know I have heard it before.
Punum, or as Mike thinks it is spelled, Poonum.
“Look at his cute punum.”
“Look at her cute poonum.“
If anyone knows what this is please inform us.
Edit: I have been informed that the word is Punim, and it is Yiddish