Fruit that tastes like a cucumber and looks like a pear?

Does anyone know what that fruit (or is it a vegetable) called that's green like the green apple but looks like a pear? it doesn't seem to have any seeds inside. My mom bought one to try and forgot what it's called. She said it's starts with "ch"
Fruit that tastes like a cucumber and looks like a pear?
Chayote. Also called Alligator Pear due to the wrinkly texture of it's skin. Not a personal favorite of mine.
Reply:This sounds like it could be called a chou chou or pronounced as shoe shoe, as far as I know it grows on a vine or creeper.
skates