kink

1 a painful sudden tightening of a muscle <got a kink in my neck from lying in that awkward position for too long> Synonyms charley horse, crick, {h,1}cramp, spasmRelated Words contraction, jerk, pang, stitch, twinge, twitch

2 an odd or peculiar habit <the boss's fondness for nicknames is one of those kinks that staffers just have to put up with> Synonyms crotchet, curiosity, eccentricity, erraticism, individualism, idiosyncrasy, mannerism, oddity, peculiarity, quiddity, quip, quirk, singularity, tic, trick, twistRelated Words affectation, airs; attribute, characteristic, mark, property, trait; custom, habit, pattern, practice (also practise), way, wont; addiction; abnormality, neuroticism, perversion, weirdness; disposition, genius, leaning, partiality; bent, inclination, penchant, predilection, predisposition, proclivity, propensity, tendency, turn; attitude, character, humor, identity, individuality, nature, personality, temperamentNear Antonyms conformity, sameness

3 a sudden impulsive and apparently unmotivated idea or action <whenever he got a kink in his head, he'd drop whatever he was doing to pursue this latest obsession> Synonyms bee, caprice, crank, fancy, freak, humor, whim, maggot, megrim, notion, vagary, vagrancy, whimsy (also whimsey)Related Words capriciousness, fancifulness, fantasy (also phantasy), freakishness, impetuosity, whimsicality; conceit; concept, conception, image, impression, mind's eye, picture, thought; brainstorm, inspiration