I heard a little doofus kid just last week telling a girl she had a cute "ahegao" but he clearly meant "ahoge." Was funny because she had no idea what the hell he was talking about anyway. I'm sure he'll explain what he thinks ahegao means and she will continue the misunderstanding for a while. Telling everyone she knows how adorable her o-face is to people who have no idea what she really means.
I am aware this has nothing to do with the story. Carry on.