The sounds ruin it!

First off I have to say my son loves playing this, especially since these are words we have recently been working on BUT what the heck is up with the SOUNDS they make??? Honestly the weird grunts and words sound pervy, my husband overheard him playing it on my phone and asked what the hell is he playing?! Seriously he tries to mimic these sounds that have no correlation to the foods and it annoys me, just no sound please, the knocking is enough. Thanks!

Mom to 2 yr old about Peekaboo Fridge™