I think Linda and the dad argue a lot "honey, listen" "just listen" "Linda, Linda, Linda"... Where do you think he heard that from ?
He clearly sees and hears someone's talking to his mom like this which is where he picked it up. Most likely his dad bc it seems like the way a husband or boyfriend would talk to his girl when he just wants to be heard ( i could def be wrong though) Either way It's harmless and also shows how smart and receptive kids are. This kid is super cute and bright. xoxo