Isn't it the cutest thing in the world when toddlers use the wrong word or mispronounce words? When my #1 daughter was tiny she confused the word "bottom" with "bonnet."
"I fell on my bonnet!"
Instead of helping her use the correct word we delighted in saying "bonnet" ourselves. But then when she was in the library listening to a story called "The Easter Bonnet" it was very confusing for her.
A couple of years ago I was in Colorado skiing with my #1 son and his family. This is not the King of the World son. This is his boss.
It was snowing. He was driving a new rental car and fiddling with the windshield wipers. He looked at me and said, "I'm having trouble with the whipper whoppers."
I thought my heart would melt.