partouze
/pɑːˈtuːz/(also partouse) slang
noun
A party at which participants indulge in indiscriminate and collective sexual activity; an orgy. Also in extended use: a nightclub noted for the wildness or licentiousness of its entertainment.
Origin
1950s; earliest use found in Edmund Wilson (1895–1972). From French partouse, partouze from partie + -ouse, -ouze colloquial suffix.