什么病没药医?

Quite often, Lynn will bang herself on some furniture when she's playing n not looking. I will laugh at her "是你自己 笨hor...". And she will be embarrass and a little angry.

This morning, she knocked her head on the floor. Wk tried to poke fun at her by saying "有种病没药医，你知道是什么吗？ What wk is trying to say is "笨＂but of course Lynn doesn't know. She answered "撞头"! We had a good laugh, and I told wk that with that answer we really can't say she is "笨".