First let me say, my wife and I raised our granddaughter. When she was 6 we were in a shoe store and in the check-out line, I was holding her hand and she looked up at me and said, "Pappy, you're my favorite turd". Now we all know where she got this A lady was sitting in a chair next to the check-out line trying on some shoes and when she heard this, she didn't even raise her head to look at us, she said, "Well, that will teach you". This has always stuck out as a very special moment for me.
Some of the other funny things she's said when she was between 5-7 years old was, "I'm laxing", which translates to I'm relaxing. She also would say, "I am being haved", which translates to I am behaving.