Sponge Bob Square Cracker

My kids love Ritz crackers. We buy them in bulk and go through them pretty quickly. They call them circle crackers. Well Ritz are fine if you want some cheese or peanut butter on them but for soups I prefer the good old saltines. Tonight I opened a pack of saltines and the twins seemed really intrigued by these "new" crackers and, as they tend to do, they kept asking "What's this?" And as is often the case, I go through different answers of the same question. "A cracker" "A saltine" " A square cracker" So then Corinna asks me for the twelfth time "What's this?" and before I can answer she sings "Sponge Bob Square Cwackwer?"