1 definition by Channa59

It is when a couple enters a body of water, and the male repeatedly slaps his testicles against the partners chest until reaching completion.

*Note* While this act is not limited to heterosexual couples, at least one of the parties involved must possess a pair of testicles.
"No, I do not enjoy fellatio. I mush prefer doing the water chestnut."
by Channa59 October 3, 2011
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