helter-skelter
Concise Oxford English Dictionary © 2008 Oxford University Press:
helter-skelter/heltəˈskeltə(r)/
▶adjective & adverb in disorderly haste or confusion. ▶noun Brit. a tall spiral slide winding around a tower at a fair.
– origin C16: a rhyming jingle of unknown origin, perh. symbolic of running feet or from ME skelte ‘hasten’.
'helter-skelter' also found in these Oxford entries:

