(dated) A social gathering of men only.

(slang) exhausted from partying

(law) The plaintiff in a lawsuit. / (informal) The victim in a situation, the person treated unfairly.

Of food items: relatively small, so as to serve as a snack at social gatherings.

(Michigan) A liquor store, especially one that also serves a convenience store. / (UK) A shop that sells or hires fancy dress and other goods for parties.

(Church of England) A party who opposes the grant of a faculty for the alteration of a church.

A group sex event where participants' car keys are randomly handed out, determining which couples will have sex.

(South African politics) Short for South African National Party. / (Australian politics) Short for National Party of Australia. / (New Zealand politics) Short for New Zealand National Party.

(for children) Synonym of slumber party / (for adults) A party at which men wear pyjamas and women wear nightdresses (typically, there is a certain amount of sexual activity)

Exhibiting party spirit.