hatchback

I'm walking from the house to my car with an 11 month old in my arms and a three year old in tow. I buckle the baby into the car seat and walk around to help the three year old hop up and buckle into her safety seat.
As she clibs up into her seat she faces the rear of the car, exaines it, turns to me and says " I like your back side."

I try to explain that this is a hatchback. She looks at me quizically.
"It's a lot like a trunk" I explain.
"oh, I like your trunk"

I gave up. it's not a compliment I'm used to - but one can accept from a toddler.