Head over heals

The other day I was in my closet putting away laundry when Kaylee came in and looked up at my shoes and said, "you have a lot of head over heals."  At first I did not think I heard her right.  But then Lex came in and she said it again to Lex.  I had to laugh, and then explained that my shoes with heals are just called "heals" and not "head over heals".  I told her how "head over heals" is an expression for something.  Like if you are head over heals in love, you are really in love with that person.  I think she understood??  I did not even know she had heard that expression before but it sure put a smile on my face!