sandbagger

Etymology

From sandbag + -er.

sandbagger means one who sandbags (misleads about their ability level in order to win bets); a hustler. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

noun

One who sandbags (misleads about their ability level in order to win bets); a hustler.“The best seat is in front of players who open freely and raise freely, and behind any sandbaggers (players who pass strong hands and then raise when someone else opens). “Openers to your left, sandbaggers to your right.” This is especially true in a limit game.”
A robber who sandbags (suddenly strikes, with a sandbag or other object, so as to stun) victims.“The Day-Globe, Waco, Texas, July 5th., 1893, writing on "The Conscienceless Juror," says: […] 'Red Farrel' a notorious sandbagger and robber was on trial in Judge Moise's Court.”