Definition of party spirit in US English:

party spirit

noun

  • 1A feeling of support and solidarity for the group, faction, or political party of which a person is a member or adherent.

  • 2An atmosphere of celebration; a festive mood.

Origin

Early 18th century; earliest use found in Daniel Defoe (?1660–1731), writer and businessman. From party + spirit.

Pronunciation

party spirit

/ˌpɑːti ˈspɪrɪt/