Swedish

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Etymology

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boll or bolla + plank

Noun

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bollplank n

  1. a wall of planks intended to have a ball bounced against it (for practice)
  2. (figuratively) a sounding board (person or group whose reactions to a new idea or proposal serve to assess its acceptability – compare bolla idéer (bounce ideas))

Declension

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References

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  NODES
Idea 2
idea 2
Note 1