Real Dictionary

wind up
phrasal verb: If you wind someone up, you deliberately say things which annoy them.
phrasal verb: If you wind someone up, you say untrue things in order to trick them.
phrasal verb: If you wind up in a particular place, situation, or state, you are in it at the end of a series of actions, events, or experiences, even though you did not originally intend to be.
phrasal verb: When someone winds up a business or other organization, they stop running it and close it down completely.
phrasal verb: When you wind up an activity, you finish it or stop doing it.
phrasal verb: When you wind up something such as the window of a car, you make it move upwards by turning a handle.

wind up in American English
to bring to a state of great tension; excite (usually used in the past participle)
to wind into a ball, etc.

wind up in British English
to bring to or reach a conclusion
adjective: having a mechanism powered by the manual tightening of a spring
noun: the act of concluding

wind-up
A wind-up device is a mechanical device with a handle or key that you turn several times before you use it in order to make it work.

wind-up in British English
adjective: having a mechanism powered by manual tightening of a spring
noun: an act or instance of teasing