(n): restraint that attaches to something or holds something in place
(n): a slight irregular shaking motion
(n): the act of causing something to move up and down (or back and forth) with quick movements
(v): move to and fro
(v): move or cause to move back and forth
(v): fasten or join with a joggle
(v): cause to be firmly attached
I imagine you have to throw the balls forward. As for juggling on a train, I've never done it, but from what I understand of physics, both you and the ball are moving at the speed of the train, so when you drop something, it falls straight. Will test next time I'm on a train.
But.. wouldn't the balls be far behind you by the time they came down? Or is it like juggling on a train?
I've also been told of people who can juggle while downhill skiing.
That I'd pay to see!
There was a craze once for entering races like the marathon and running and juggling at the same time. To do this you had to joggle. It became known as joggling.
In masonry, a joint at the meeting of two adjacent pieces of stone or timber, so constructed as to produce a pressure transverse to that by which they are held together, and thus to prevent them from sliding on one another; a notch in one piece, or a corresponding projection in the other, or a small piece let in between both, for this purpose.