ichidan verb, intransitive verb
become twisted; get bent out of shape
Describes something physically becoming twisted, warped, or bent, often unintentionally.
針金がひねくれてしまって、まっすぐに戻らない。
The wire got twisted and won't go back to being straight.
ichidan verb, intransitive verb
become perverse; get sulky; turn bitter
Describes a person's personality or attitude becoming warped, cynical, or contrary. Sense 2 (sulking) and sense 3 (embittered) are merged here as they both refer to a negative change in disposition.
あの子は親の離婚がきっかけで、すっかりひねくれてしまった。
That kid became completely warped after his parents' divorce.
彼は何を言ってもひねくれた返事しかしない。
No matter what you say, he only gives sulky, twisted replies.