Our grandson has some of the cutest sayings. I personally think he is the smartest 3-year-old I've ever known (but I may be biased - lol).
We've been trying to teach him to say "oh my stars" and the other night I asked him to say it for me. His reply was, "My mouth is green and yellow and dirty, and I just can't say that." His momma has been working with him to learn his colors so apparently he thought his mouth was colored as well. LOL