plural of slippery slope

(skiing, snowboarding) A discipline of freestyle skiing or snowboarding involving an obstacle course.

Located on or near a ski slope.

The side of a slope.

(technical, construction, US) According to ASTM standard E 1918-97, a roof whose uppermost part is installed at a slope of 2/12 or 1:6 (9.5 degrees) or less.

(technical, construction, US) According to ASTM standard E 1918-97, a roof whose uppermost part is installed at a slope of 2:12 (9.5 degrees) or more.

plural of steep-slope roof

(colloquial, UK, Yorkshire) wet mud

In a sloping fashion; obliquely.

(informal, intransitive) To depart quietly, without being noticed.