(slang, dated) A social gathering at which people slather themselves in cooking oil (such as Mazola) and participate in sexual activities. / (by extension) Any type of orgy.

A supposed group sex event in which numerous women, each wearing a different color of lipstick, perform oral sex on one man.

A commonly shared wall dividing two properties within a row house (or terrace)

(now rare) The guests staying at a given house, as opposed to those visiting for the day. / A social gathering at someone's house, generally with music, drinking etc.

plural of party school

(colloquial) bachelor party

A relatively formal meal at which invited guests eat in the home of the host

A game played at a party, such as musical chairs or charades. / (video games) A multiplayer game, usually consisting of a series of short minigames, that can be easily played in a social setting.

plural of party animal

(computing) A social event based around a LAN (local area network) where participants engage in computer activities such as multiplayer gaming.