Wiktionary
vb. 1 To fall off a surface with a sliding or slipping movement, usually because the surface is inclined 2 To leave a place, or a meeting, without being noticed
Usage examples of "slide off".
How did the Mackintosh coat of arms happen to slide off the mantel at the strategic moment?
She saw his eyes slide off her as a hostess brushed by, her gown low cut.
He let the cloak slide off his shoulders, spilling it over one arm.
Time tension, like water tension, exists at the moment of breakout when you are showered with a spray of moments that slide off you with the emotional shock of icy rain.
Relief flooded through me until my arms and leg started to slide off of him.
It took another step, wobbled, took one shaky step more, then folded in place to slide off the hemlock into oblivion.
Before long, the stripe would start to slide off the bed and she would see shadows in the corners and under the little table over by the wall.