Source : WordNet®

sandbag
     n : a bag filled with sand; used as a weapon or to build walls
         or as ballast
     v 1: treat harshly or unfairly
     2: compel by coercion, threats, or crude means; "They
        sandbagged him to make dinner for everyone" [syn: {dragoon},
         {railroad}]
     3: hit something or somebody as if with a sandbag [syn: {stun}]
     4: downplay one's ability (towards others) in a game in order
        to deceive, as in gambling
     5: protect or strengthen with sandbags; stop up; "The residents
        sandbagged the beach front"
     [also: {sandbagging}, {sandbagged}]