Crazy paving
With this one, the clue really is in the name. Frequenting our backyards since the 1970s, crazy paving is a novel way of laying a path or patio with haphazard slabs of stone or concrete, giving a somewhat unfinished appearance.
We’re really not sure how this craze became a thing, but like the Slinky and electric blue eye shadow, the time for crazy paving has been and gone.