sandbag

/S AE1 N D B AE0 G/
noun
  1. 1

    A sturdy sack filled with sand, generally used in large numbers to make defensive walls against flooding, bullets, or shrapnel.

  2. 2

    A small bag filled with sand and used as a cudgel.

  3. 3

    An engraver's leather cushion, etc.

  4. 4

    A deceptive play whereby a player with a strong hand bets weakly or passively.

verb
  1. 1

    To construct a barrier of sandbags around.

    โ€œWe sandbagged the basement windows against the floodwaters.โ€

  2. 2

    To strike someone with a sandbag or other object to disable or render unconscious.

  3. 3

    To conceal or misrepresent one's true position, potential, or intent in order to gain an advantage.

Source: https://en.wiktionary.org/wiki/sandbag