zlacker

I've not encountered the HN meaning of it outside startup culture, specifically. There's a kinda-similar definition in sports that's common but not quite the same, and then if you're talking about "hustle" as in "part of a money-making venture" it means you're running a scam or shady semi-legal or illegal business of some kind. Everywhere except HN and broader tech startup culture. Though that usage does seem to be spreading.

[EDIT] for context, my upbringing was very much not in "street culture"

[EDIT EDIT] I may be alone in this, but I dislike the HN use of the word on the grounds of both other definitions—the sports version strikes me as trying too hard to associate business with sports as a kind of borrowed glory or, in the worse cases, lame machismo, while the way it also—by my own prior association and in the ways the use of the term differs subtly from the sports meaning—brushes up against the "running a scam" definition is bad on its own, obviously, but also makes the sports association grosser, somehow.