Crumby

When you’re eating a cookie Or pastry or cake Or any sweet offering Someone did bake There are bound to be crumbs On your plate left behind (For the ones for whom finger-licks Are too refined). Though if crumbs fall from something Delicious to taste, It’s a shame to let tidbits Like those go to waste. Which is why I don’t get, Since such morsels are yummy, Why something not good Is referred to as crummy.