Basic Guidelines For English Spellings
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1Golf
The action or practice of using excessive backswing or follow-through when swinging the club; an instance of this.
2Gymnastics
A movement in which the body swings or turns over.
3Generally. The action or an act of swinging too far. Also in extended use: an excessive reversal or correction; an overreaction.
Early 20th century. From over- + swing.
(chiefly Golf and Baseball). To swing too hard when hitting a ball, employing excessive backswing or follow-through.
Old English (in an earlier sense). From over- + swing.