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The act of two people wrapping themselves around each other while sleeping (or otherwise enjoying sexy times), in a similar vein to a boa-constrictor catching its prey. All of the different ways in which two people interact with each other while sleeping can therefore be considered Boa Moves. Generally, neither person dies or is eaten.
Ah, baby, I so enjoyed the Boa Moves with you last night!
by Neurathian Ship October 02, 2013