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1.
Mainly UK, especially south-east England. (v) To use information (true or fictional) to provoke, tease or deceive. (v) To invent with the intent of conning. (n)A deceptive or provocative act. A "Wind-up merchant" is somebody who is disposed to wind others up, a habitual liar, or prankster. Origin: from the act of winding a clock or other clockwork device.
"He claimed he had been in the SAS, but it was just a wind-up." "Bob would wind Mike up by claiming he'd slept with Mike's girlfriend" "That blokes a wind-up merchant" "It seemed at first glance to be two mathematicians arguing number theory, but it was a wind-up - they were just talking nonsense, it turned out."
by CJ2222 October 01, 2005
 
2.
to annoy or upset someone
She just knows how to wind me up.
He wind up his classmates.
by LikeTheWind February 23, 2012
 
3.
to tease, usually with some malice
He said he's meet her at 7 o'clock, but after she'd been standing in the rain for an hour she realised it was a wind-up
by Bill Cranny December 16, 2003