- An individual that unintentionally makes life difficult for others.
- A troll that has somehow justified their actions and doesn't think they're actually trolling.
- Someone that doesn't take responsibility for their actions and it negatively affects the group.
- A joke of a person
Mike - "Yo did Chris put in money for the restaurant bill?"
John - "He said he didn't have to because he only bought a soda"
Mike - "He's a hack"
Chris - "Did John throw up in the bathroom and not clean it up?"
Gabe - "I'm not sure but if so that was a hack move"