Bread swinging is a strategy designed to lower your turn count. You can swing manually by the v key. It takes 15 auts to swing a miscellaneous item, like a scroll, but only one turn. Therefore, you will have more time to regenerate health, while taking the same amount of turns. An untrained weapon with high base delay, such as an executioner's axe or bardiche, takes even longer.
This strategy has a relatively little impact on the number of turns taken. The insert key allows you to repeat an action over and over for this purpose.