To swingled means to beat or thrash something, especially flax, to break the woody part from the fibers.
Swingling can make people think of hard work and old-fashioned farming.
Examples:
The farmer swingled the flax to make linen.
She swingled the flax with a wooden tool.
Swingling is hard work.
I swingled the flax and got very tired.
Back in the old days, swingling was a very important job.
He swingled the flax until it was all done.