wife swapping
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wife swapping
n
a. the temporary exchange of wives between married couples for sexual relations
b. (as modifier): a wife-swapping party.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014