"Sloping" refers to something that is inclined or slanted. It describes the way in which a surface or object leans or tilts downwards or upwards, rather than being completely level or flat.
They have all sorts of slopes of different sizes for all levels and ages. (blog.guesttoguest.com)
I often found myself holding down on the d - pad (trying) to roll while running on slopes. (gonintendo.com)
For too many people, unexpected financial emergencies lead to unexpected payday loan debt, which nearly 80 % of the time leads to a slippery slope of more payday loan debt. (realpdlhelp.com)