| 1. | Machinery. any of several types of arms or levers for imparting rotary or oscillatory motion to a rotating shaft, one end of the crank being fixed to the shaft and the other end receiving reciprocating motion from a hand, connecting rod, etc. |
| 2. | Informal. an ill-tempered, grouchy person. |
| 3. | an unbalanced person who is overzealous in the advocacy of a private cause. |
| 4. | an eccentric or whimsical notion. |
| 5. | a strikingly clever turn of speech or play on words. |
| 6. | Archaic. a bend; turn. |
| 7. | Slang. the nasal decongestant propylhexedrine, used illicitly for its euphoric effects. |
| 8. | Automotive Slang. a crankshaft. |
| 9. | to bend into or make in the shape of a crank. |
| 10. | to furnish with a crank. |
| 11. | Machinery. to rotate (a shaft) by means of a crank. |
| 12. | to start (an internal-combustion engine) by turning the crankshaft manually or by means of a small motor. |
| 13. | to start the engine of (a motor vehicle) by turning the crankshaft manually. |
| 14. | to turn a crank, as in starting an automobile engine. |
| 15. | Obsolete. to turn and twist; zigzag. |
| 16. | unstable; shaky; unsteady. |
| 17. | of, pertaining to, or by an unbalanced or overzealous person: a crank phone call; crank mail. |
| 18. | British Dialect. cranky 1 (def. 5). |
| 19. | crank down, to cause to diminish or terminate: the president's efforts to crank down inflation. |
| 20. | crank in or into, to incorporate as an integral part: Overhead is cranked into the retail cost. |
| 21. | crank out, to make or produce in a mass-production, effortless, or mechanical way: She's able to crank out one best-selling novel after another. |
| 22. | crank up, Informal.
|
| 1. | Also, cranky. having a tendency to roll easily, as a boat or ship; tender (opposed to stiff ). |
| 2. | a crank vessel. |

crank
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crank (sth)
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crank
(Automotive slang) Verb used to describe the performance of a machine, especially sustained performance. "This box cranks (or, cranks at) about 6 megaflops, with a burst mode of twice that on vectorised operations."
[The Jargon File]
(1994-12-01)