Well, when I described a thank-you-maam - seems I was really describing a "Kiss Me Quick!"
I blame it all on my Father. He told me and he had it mixed up!
The depression in the road would be a "thank you ma'am" and the lifting of car from a hump in the road would be a "kiss me quick."
A pothole is neither, It's a big hole in the paved surface that causes your car to go out of alignment and ruins your tires!
Apologies ... seems even an old dog can learn something new every day, to mix my metaphors.