thrash

1. verb, thresh | ‘thresh’: shake, beat or mechanically treat (wheat etc.) to separate the grain from the husk and straw, esp. with a flail or by the action of a revolving mechanism (COD); 2. ‘thrashed’, adjective, that is or has been thrashed (OED)

1.
“The farmers we worked for, they stooked and thrashed with a thrashing machine.”

“They could grow the grain, but then they’d just store it and thrash it in the wintertime. Thrashed it with horses.”

“When you thrash, you bring the sheaves of grain in from the field, straw in them, and then the thrashing machine separates the grain out, and then you blow the straw into a big pile.”

“What about thrashing time? Were you involved?”
“Oh yeah, thrashed every fall.”

2.
“And they’re pitching the sheaves in, and the straw’s blowing out one pipe, the thrashed grain’s coming out the other pipe.”