(baseball) To make the preparatory movements for a certain kind of pitch.
Esimerkit
Toward the end of the war, Benoit was sent off on his own with forged papers; he wound up working as a horse groom at a chalet in the Loire valley. Mandelbrot describes this harrowing youth with great sangfroid.
Even though he had bad news, he tried to wind up his speech on a positive note.
Your pocket watch will run for a long time if you wind up the spring all the way.
Their feet padded softly on the ground, and they crept quite close to him, twitching their noses, while the Rabbit stared hard to see which side the clockwork stuck out, for he knew that people who jump generally have something to wind them up. But he couldn't see it. They were evidently a new kind of rabbit altogether.
Try not to wind up the kids too much right before bedtime.