Something that costs an arm and a leg; to be expensive; to cost a lot of money.
"Mary's dress is real silk. It must have cost a pretty penny."
"Taking care of a fancy car like that can cost a pretty penny, let me tell you."
Oldest daughter Stephanie spent part of her vacation here doing her favorite thing, shopping. She and my Mom share the uncanny ability to go shopping without ever spending money. I'm not sure exactly how they manage the task, but the act should be renamed 'Looking!' In her prime my Mom loved to shop at the now defunct TGY variety stores in Oklahoma City. She never did drive, so Daddy would take her shopping on the weekends...a true act of love! He didn't accompany her in her quest, but would rather sit in the car and wait 'watching people,' his chosen passtime!! Mom would return to the car without a single purchase. I was witness to this odd behavior many times and when I got older, I asked Mom why she liked to shop and not buy anything. Her answer? "I just like to look."
So here I am at 58 and it's happening to me. Shopping has lost it's sparkle. I no longer shop just for the enjoyment, the thrill of the hunt. Bargains may be out there but I don't feel the need to hunt anymore. Not unless I need something. That's not to say I wouldn't be tempted if I see that Belks has a sale on some shoes or dishes (my real weakness)!