Definition of: hump

(hump) noun
1. A protuberance, especially that formed by a curved spine or a fleshy growth on the back: the hump of a camel or bison.
2. A mound in a railroad switchyard up one side of which cars are taken by an engine and then allowed to coast down the other; hence, any obstacle.
3. Brit. Slang An attack of ill temper; blues.
4. Colloq. A long tramp or hike, especially with a load on the back.
—over the hump Beyond the point where force or effort is needed; at the point where all is easy going.
—The Hump The Himalayas: name applied by aviators in World War II.
—v.t.
1. To bend or round (the back) in a hump; hunch.
2. U.S. Slang To put forth great effort: used reflexively: Hump yourself.
3. Austral. Slang To carry on the shoulders or back; also, to carry. [Origin uncertain]