【明報專訊】In the middle of the day Benny enjoys taking a little nap (小睡). "Ah," he said just before drifting off to sleep. "The corner of this rug is very cozy. I feel as snug as a bug in a rug." Because "snug" and "bug" and "rug" rhyme (押韻), this is a rhyming idiom. It means to be very comfortable and warm.