Read the dictionary definition of sandbag. All definitions for this word.
1. a bag filled with sand; used as a weapon or to build walls or as ballast
2. protect or strengthen with sandbags; stop up
1. The residents sandbagged the beach front
3. downplay one's ability (towards others) in a game in order to deceive, as in gambling
4. hit something or somebody as if with a sandbag
5. compel by coercion, threats, or crude means
1. They sandbagged him to make dinner for everyone
6. treat harshly or unfairly