Толковый словарь английского языка - sandbag

I. noun Date: 1590 a bag filled with sand and used in fortifications, as ballast, or as a weapon, II. verb Date: 1860 transitive verb to bank, stop up, or weight with ~s, 2. to hit or stun with or as if with a ~, to treat unfairly or harshly, to coerce by crude means , to conceal or misrepresent one's true position, potential, or intent especially in order to take advantage of, intransitive verb to hide the truth about oneself so as to gain an advantage over another, ~ger noun