- 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

Someone in the film industry, usually a director, who works on projects solely for financial reasons, rather than creative reasons. It is not about a filmmaker who is simply bad. That is a common misconception.

An event that is unexpected and favors a particular person especially in competetion. Also, when some one uses a video game glitch, expolit or trainer to give them an advatage

n. two or three holes "hacked" into the ice at each end of an ice curling rink to give the sweepers somewhere to rest their brooms. Also:

v. what smokers do while curling, which is one of the few Olympic sports where smoking is allowed during the game.

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In Northern Irish slang:

n. "The hack of...": "the sorry state of...".

v. To cope with.

A political appointed flunky who either doesn't want to work or who is so stupid they can't work

All the definitions here plus:
As an acronymn for Horses Ass Carrying Keys. Prison slang referring to a prison guard.