I could say the same thing about calling a zerbert a raspberry.
It has whatever name it has, in your own particular family/community. My kids grew up getting zerberted by their family, so they'll naturally zerbert their own kids when their time comes. Why would they ever call it a raspberry?
By the way, fun fact, my dog is
terrified of my brother-in-law because her zerberted her little pink tummy once when she was a puppy. Over a decade later, and she still slinks around him when he comes over. Moral - don't zerbert dogs!