hump

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A rounded mass or protuberance, such as the fleshy structure on the back of a camel or of some cattle.
2. n. A deformity of the back in humans caused by an abnormal convex curvature of the upper spine.
3. n. Vulgar Slang The act or an instance of having sexual intercourse.
4. n. A low mound of earth; a hummock.
5. n. A mountain range.
6. n. Chiefly British A fit of depression; an emotional slump.
7. v. To bend or round into a hump; arch.
8. v. Slang To exert (oneself).
9. v. Slang To carry, especially on the back.
10. v. Vulgar Slang To engage in sexual intercourse with.
11. v. Slang To exert oneself.
12. v. Slang To hurry.
13. v. Vulgar Slang To engage in sexual intercourse.
14. idiom. over the hump Past the worst or most difficult part or stage: At last I'm over the hump on my term paper.

Century Dictionary and Cyclopedia

1. n. A protuberance; a swelling.
2. n. Especially— A hunch or protuberance on the back, caused by an abnormal curvature of the spine, or by natural growth: as, a man with a hump; a camel with two humps; the hump on the back of a whale.
3. n. In entomology, a projection on the back of a larva, formed by an upward enlargement of a whole segment, which is then said to be humped. Projections of this kind are very common in the larvæ of the Lepidoptera.
4. To bend or hunch so as to form a hump, as the back in some kinds of labor, like that of a miner or ditcher, or as cattle in cold or stormy weather.
5. To prepare for a great effort; gather (one's self) together; hurry; exert (one's self): as, hump yourself now.
6. To huff; vex.
7. In cutlery, to round off, as scissors.
8. To use great exertion; put forth effort.
9. n. A sailors' name for a worthless member of the crew; a green hand.
10. n. A long tramp with a load on the back.

Wiktionary

1. n. A mound of earth.
2. n. A rounded mass, especially a fleshy mass such as on a camel.
3. n. A deformity in humans caused by abnormal curvature of the upper spine.
4. n. UK, slang An act of sexual intercourse.
5. n. slang, UK A bad mood, especially in the expression to have the hump.
6. n. slang A painfully boorish person.
7. v. transitive To bend something into a hump.
8. v. transitive, slang To carry something, especially with some exertion.
9. v. intransitive, slang To carry, especially with some exertion.
10. v. transitive, intransitive To dry-hump.
11. v. transitive, slang To have sex with.
12. v. intransitive, slang To have sex.

GNU Webster's 1913

1. n. A protuberance; especially, the protuberance formed by a crooked back.
2. n. (Zoöl.) A fleshy protuberance on the back of an animal, as a camel or whale.
3. n. (Railroad) a portion of a switchyard with a slanting track in which freight cars may coast without an engine and be sorted through a series of switches.
4. v. To form into a hump; to make hump-shaped; to hunch; -- often with up.
5. v. Slang, Australia To put or carry on the (humped) back; to shoulder; hence, to carry, in general.
6. v. Slang, U. S. To bend or gather together for strenuous effort, as in running; to do or effect by such effort; to exert; -- usually reflexively or with it.
7. v. (Railroad) to sort freight cars by means of a hump.
8. v. Vulgar Slang, U. S. to engage in sexual intercourse with.

WordNet 3.0

1. v. round one's back by bending forward and drawing the shoulders forward
2. n. something that bulges out or is protuberant or projects from its surroundings
3. v. have sexual intercourse with