Spaneling means tying an animal's legs together so it can't move around too much.
Spaneling is usually done to keep an animal in one place or to make it easier to handle.
Examples:
The farmer is spanceling the cow.
She is spanceling the horse so it doesn't run away.
The dog is spanceling the sheep.
We are spanceling the chickens so they don't fly away.
He is spanceling the big bull so it doesn't hurt anyone.
The cat is spanceling the mouse!