Definition of sandbag | Bee Dictionary of English

n a bag filled with sand; used as a weapon or to build walls or as ballast
v treat harshly or unfairly
v compel by coercion, threats, or crude means
They sandbagged him to make dinner for everyone
v hit something or somebody as if with a sandbag
v downplay one's ability (towards others) in a game in order to deceive, as in gambling
v protect or strengthen with sandbags; stop up
The residents sandbagged the beach front

Wearing an empty sandbag over his head, he was interrogated by a CIA officer identified in last week's issue of the New Yorker as Mark Swanner, who is not a covert operative.
Wearing an empty sandbag over his head, he was interrogated by a CIA officer identified in last weeks issue of the New Yorker as Mark Swanner, who is not a covert operative.
On Scene: A PTI reporter fills a sandbag and tracks his small contribution to the battle in a remote corner of the war.

Greene waits out the waters
GREENE — Five years ago, the Shell Rock River spilled over its banks, rolled over a wall of sandbags and flooded downtown Greene.
June 14, 2013 - The Globe Gazette
Elmhurst provides sandbag materials
ELMHURST – Because of the severe storms, the city of Elmhurst has set up six sandbag assembly locations. Residents are required to fill their own bags, and each location will have one shovel.
June 13, 2013 - Huntley Farmside
Greene residents keep wary eye on swollen Shell Rock River
GREENE, Iowa — Five years ago, the Shell Rock River spilled over its banks, rolled over a wall of sandbags and flooded downtown Greene.
June 13, 2013 - Waterloo-Cedar Falls Courier

David Safavian in USA Today
It never occurred to me to questionAbramoff's cost figure, Safavian replied. "Mr. Abramoff had no reason to underbill me. He knew I was concerned about ...... appearances. Why would he sandbag me that way?"
Michael Gove in BBC News
Mr Gove, on the BBC's Andrew Marr programme, said he would like to see a "spirit of co-operation" between the Conservatives and Lib Dems. "We must be respectful of what the Liberal Democrats want to do. We're not attempting to sandbag or...