To have looked at something with your eyes open wide, often because you are surprised or amazed.
Shinneyed can make people think of big eyes and being very interested in something.
Examples:
She shinneyed at the huge cake.
The kids shinneyed at the shiny new toy.
He shinneyed at the colorful fireworks.
The dog shinneyed at the squirrel in the tree.
The whole town shinneyed at the strange creature in the sky.
I shinneyed at the big mountain and couldn't believe how tall it was.