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Graded automatically based on peer agreement. KudoZ.
1 day 1 hr confidence:
Explanation: 'Kluns' the game may be the one called Spoof, as the dictionary suggests, but I for one have never played it.
Quote The American Heritage Dictionary: "Sometime in the 19th century Arthur Roberts (1852-1933) invented a game called Spoof, which involved trickery and nonsense."
In today's Denmark 'at klunse' to some people means to hide matches in your hand and have your opponent guess how many you are holding.
To others it means to draw straws (usually done with matches too).
In either case the game can be used to determine who has to do a particularly unpleasant task, of which there are many on a construction site.
But I'm guessing... the 'pilfering' option seems likely too.