sandbagger

Noun

 * 1) One who sandbags (misleads about their ability level in order to win bets); a hustler.
 * 2)  A robber who sandbags (suddenly strikes, with a sandbag or other object, so as to stun) victims.
 * 1)  A robber who sandbags (suddenly strikes, with a sandbag or other object, so as to stun) victims.
 * 1)  A robber who sandbags (suddenly strikes, with a sandbag or other object, so as to stun) victims.
 * 1)  A robber who sandbags (suddenly strikes, with a sandbag or other object, so as to stun) victims.