Northern USA Hill billy slang for "Hell goer". Often used when a Hill billy is frustrated or upset due to people who sin and don't abide to there culture. It is a genuine belief that anyone outside of there culture is a "Helgur".
Let's go after that Helgur!
You're not turning to the Helgurs are you?
The bottom line is that this doesn't really have a definition. It's just what the hell is the name of the container butter comes in?!
I used an entire thing of butter when making that cake.
When I guy leaves it too late to hit on a girl before others which results in him getting sloppy seconds, thirds, fourths, and so on.
John is moving last on that girl.