To bend something into a hump.
To carry (something), especially with some exertion.
To shunt wagons / freight cars over the hump in a hump yard.
To dry-hump.
To have sex (with).
A mound of earth.
An act of sexual intercourse.
A bad mood.
A speed bump or speed hump.
A wave that forms in front of an operating hovercraft and impedes progress at low speeds.
A rounded fleshy mass, such as on a camel or zebu.
A painfully boorish person.
A deformity in humans caused by abnormal curvature of the upper spine.
To use a snorkel.
A snorkel parka.
A retractable tube fitted in diesel-engine submarines to allow sufficient ventilation that the engines may be used at periscope depth.
A hollow tube, held in the mouth, or mounted on and opening into a diving mask, used by swimmers for breathing underwater.