If you refer to someone as a hustler, you mean that they try to earn money or gain an advantage from situations they are in by using dishonest or illegal methods.
例句
...an insurance hustler.保险诈骗者
N-COUNT
娼妓;（尤指）男妓，牛郎
A hustler is a prostitute, especially a male prostitute.
英汉词典释义
n.
精力充沛、能干的人
He’s a real hustler.他是个真正有才干的人。
英英词典释义
Noun
1. a prostitute who attracts customers by walking the streets
2. a shrewd or unscrupulous person who knows how to circumvent difficulties