sandbag
/ˈsændbæɡ/Definitions
1. noun
a bag made of canvas or other strong material, filled with sand, used as a weight or to protect something from damage
“The construction crew used sandbags to reinforce the embankment against the floodwaters.”
2. verb
to cheat or deceive someone, often by hiding the true nature of a situation
“The company was accused of sandbagging investors by hiding the financial risks of the project.”