party-going1
/ˈpɑːtiɡəʊɪŋ/noun
The practice of attending parties, especially frequently.
Origin
Mid 19th century. From party + going. Compare earlier party-going.
party-going2
/ˈpɑːtiɡəʊɪŋ/adjective
Of a person: that regularly attends parties.
Origin
Early 19th century; earliest use found in Weekly Inspector. From party + going.