Rubbish

Lily skipped in the room, gave me a hug and said, "Mom, you're rubbish!"
"What?!" I said in surprise. "That's not very nice!"
"Why?" She asked. "What does 'rubbish' mean?"
"It means garbage!" I replied.
Lily thought a minute, then said, "Well then, you're NICE rubbish!"
All's well that ends well, I guess.