Auto Nut Split

Occurs in a game of conkers, where the conker of the striker splits and breaks upon impact against their opponents conker.

A conker (or buckeye) is the seed of the Horse Chestnut tree.

Juliette swung her conker, connecting perfectly with her opponents. The conker shattered and for a moment she thought she had won, the reality was she had been the victim of and Auto Nut Split and so lost the match.