thrashes's Usage Examples:

No longer do we hear the thud of the mill engine nor the hum of the high-speed drum as it thrashes the sheaves.

He gets away with the first two as Roddick, trying to find a winner, thrashes the ball into the net.

thrashes the ball into the net.

Tira who thrashes you with a barbed hoop of some sort, and Zasalemel, who looks pretty darn brutal with the scythe.

Synonyms:

beat, lick, clobber, bat, cream, drub, flail, lam, thresh, beat up, work over,

Antonyms:

inflexibility, strengthen, depress, calm, hate,