Boogers

I try very hard to talk. I practice and repeat words constantly. I'm getting pretty good with some words. Yesterday, when Daddy got home from work, he asked me what I did all day. Usually I say things like "Play truck" or "Play sandbox" But yesterday I said, "Booger. Big bigger upim nose. Mommy get it." I thought it was very clear. But Daddy started laughing and laughing. I don't understand why.