The word hustle gives 2 different impressions, based on the frame of reference.
Hustle has a Negative meaning, when used in an everyday or none business focused context. Hustle could simply mean in this case a fraud or swindle.
Hustler in this case : A person who employs fraudulent or unscrupulous methods to obtain money; swindler.
Example: Someone selling fake Rolex for 1000$.
Hustle has a Positive meaning, when used in a business focused context, or a entrepreneurship / startup context. Hustle could simply mean in this case to do your best to make the money needed, by selling, pitching investors…
Hustler in this case : An entrepreneur or salesman determined to succeed. Armed with an outgoing personality, the hustler can sell products to customers or pitch a company to investors. An aggressively enterprising person or a go-getter.
Example: Someone selling cheap watches (not lying to customers), to raise money for his own branded watch.
What is a Side Hustle?