"Plubbing my belly"

A little while back Addy asked if she could "plub my belly." Ryan and I had no idea what she was talking about. We asked her to say it again a couple of times, so we could figure out what she was talking about. Then Ryan asked her what it meant to plub my belly and she pushed on my belly pretty hard. We both told her not to plub my belly anymore. Then just a week or so ago Ryan blew up his cheeks and asked Addy if she wanted to pop them. She said she would "plub his cheeks" and then popped them. So I guess in her mind to plub something=to pop it. Which is why she thought she could, "plub my belly." So funny how her mind works!