Conkers

Conkers is British slang for the testicles.
Found on http://www.probertencyclopaedia.com/browse/ZCA.HTM

Conkers

Conkers is a traditional children`s game in Britain and Ireland played using the seeds of Horse Chestnut trees—the name `conker` is also applied to the seed and to the tree itself. The game is played by two players, each with a conker threaded onto a piece of string: they take turns striking each other`s conker until one breaks. ==Origins== ...
Found on http://en.wikipedia.org/wiki/Conkers
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