1. At a fast speed, but in confusion.
The hatted ball broke Mr. Jones's window, and the boys ran away helter-skelter.
When the bell rang, the pupils ran helter-skelter out of the door.
2. In a confusing group; in disorder.
The movers piled the furniture helter-skelter in the living room of the new house.
Mary fell down and her books, papers, and lunch landed helter-skelter over the sidewalk.
Compare: EVERY WHICH WAY.