The act of "shaking" yours or your partners penis till you or your partner climaxes in a paddling pool.
The "shaker" then puts on a pair of speedos and a snorkel and dives into the paddling pool, causing water and ejaculate to splash onto the "shakee".
I gave him an absolute belter of a Shake and Splash.
by Anonguy21735 April 12, 2016
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