He sandbagged our proposal with his snide remarks to the boss. Poker.to deceive (one or more opponents) into remaining in the pot by refraining from betting on a strong hand, then raising the bet in a later round. Informal.to gain an advantage over (one or more competitors) by concealing...
Within six months, if you're not sandbagged or jailed on fake libel suits, you'll have a unique bibliography of swindles. From Project Gutenberg "I'll bet he's got some kind of a fake story to tell," suggested Will. From Project Gutenberg It might just as well have been any other ...