What is "heebiejeebies"

Usage examples of "heebiejeebies".

She'd had much milder heebiejeebies the day I'd broken my ankle being run over by a golf cart, but because of some deeply foreboding heebiejeebies, we had not gone skiing in a valley that could have killed us in an avalanche had we been there.

And you've always told me, haven't you, that Oliver Quigley has the permanent heebiejeebies all the time?

My grandmother, I realized, would have recognized this deep unease as heebiejeebies, but I didn't know whether the feelings I was having derived from reason or instinct or simply queasiness.

I wasn't surprised by his edginess, because the stairwell was sufficiently cheerless and oppressive to give the heebiejeebies to a Prozac-popping nun with an attitude as sweet as marzipan.

I wanted answers from Lubbock but had the heebiejeebies bad enough to think of walking.