A bent portion of an axle, or shaft, or an arm keyed at right angles to the end of a shaft, by which motion is imparted to or received from it; also used to change circular into reciprocating motion, or reciprocating into circular motion. See Bell crank.
Any bend, turn, or winding, as of a passage.
A twist or turn in speech; a conceit consisting in a change of the form or meaning of a word.
A twist or turn of the mind; caprice; whim; crotchet; also, a fit of temper or passion.
A person full of crotchets; one given to fantastic or impracticable projects; one whose judgment is perverted in respect to a particular matter.
A sick person; an invalid.
Liable to careen or be overset, as a ship when she is too narrow, or has not sufficient ballast, or is loaded too high, to carry full sail.
Full of spirit; brisk; lively; sprightly; overconfident; opinionated.
To run with a winding course; to double; to crook; to wind and turn.
A person with a new idea is a crank until the idea succeeds. Mark Twain
I am an enthusiast, but not a crank in the sense that I have some pet theories as to the proper construction of a flying machine. I wish to avail myself of all that is already known and then, if possible, add my mite to help on the future worker who will attain final success. Wilbur Wright
Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.' Stephen Hawking
I've been a huge Psychedelic Furs fan for a long time. I love Butler's paintings, too. I like all their songs. I'll even crank 'Pretty in Pink,' I don't care. Norman Reedus
In Henry Adams, I discovered not only the prototype of the modern thinker but also someone who is more interesting: a viper-toothed, puling, supercilious crank, thwarted in ambition, aging gracelessly, mad at the cosmos, and ashamed of his own jejune ideals. He is nevertheless very dear to me. P. J. O'Rourke