might and main

might and main

Cliché great physical strength; great force. The huge warrior, with all his might and main, could not break his way through the castle gates. The incredible might and main of the sea crushed the ship against the cliff.
See also: and, main, might

(with) might and main

  (formal)
with all your effort and strength War is something we should be working might and main to avoid.
See I might as well be hanged for a sheep as a lamb
See also: and, main, might
References in classic literature ?
Tom scampered after him, hallooing with might and main, and the wild horse and wild Irishman soon disappeared among the ravines of the prairie.