When my nephew, O, was 2 or so he was playing with his father and sister and all of a sudden started yelling out "Hickle fee, Aba! Hickle fee!" Poor kid is now 10 and we all still remember this story of his way of saying "Tickle me, Aba!" Probably because his father (Aba is Hebrew for Dad), my brother-in-law called everyone and told us this hysterical story.
Similarly his big sister, M, now 12 will always be remembered for telling us she was wearing "longs" when she wore regular pants (obviously as opposed to shorts).
I am still reminded of the time I ran crying to my mother after a conversation with my cousin yelling, "Mommy, why don't I have scronuts?!"
LP is well on her way to making a lasting impression. She has taken to saying "I'm all dressed off!" when she removes her clothes in preparation for a bath. I am sure this is only the beginning.