名詞 sandbag:

1. a bag filled with sand; used as a weapon or to build walls or as ballast

動詞 sandbag:

1. treat harshly or unfairly
2. compel by coercion, threats, or crude means
   同義詞：dragoon, railroad
3. hit something or somebody as if with a sandbag
   同義詞：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