Yucky Beach???

Kauai is coming! We leave in 4 days to go "home" as Micah and I have so lovingly started to refer to the magical island. We have been preping Peyton for the trip again, telling her that we will be going on a big airplane again, with Grammi and Gramps, and that we are going to the beach. She has overall been pretty receptive to the idea, and will often repeat "big airplane, beach Grammi," etc. However, yesterday as I was starting to pack some clothes she was unpacking them. I explained to her that the clothes needed to stay in the suitcase and went over the whole spiel again. "These are the clothes that we are taking on the big airplane with Grammi and Gramps to go to the beach." She stood there listening for a moment, then shook her head not, removed more clothes and said, "Yucky beach mommy."
What???? I'm beginning to wonder if there was a mix up at the hospital, as clearly these are not the words of my babe!