Whim Whams

Having a conversation about something that creeped me out.
Nancy: That gives me the whim whams.
Chris: Are the whim whams a real thing or is that another Nancy-ism?
Nancy: Yes, they are real! They’re just like the jilly jallies. Or the burr bum tickles. Or the Icky icky stickies.
Chris: I’ve never heard of any of those!
Nancy: Of course you haven’t. I just made them up.