iPod Touch is a saying, that means, "I have an apple stuck in my mouth. Please get it out!".
The saying was first used in 1846, by Jonathan Richardson, when he had an apple stuck in his mouth, and all people could understand when he said that an apple was in his mouth was, "iPod Touch". The saying became popular, and now, people can explain in a short way, when they have an apple stuck in their mouth.