Definition of pink tea in US English:

pink tea

noun

North American
  • 1A formal tea party or other social engagement, especially one hosted and (largely) attended by women, often for charitable fund-raising; (in extended use) an exclusive gathering.

  • 2Figurative. As the type of something very polite, genteel, or delicate (usually in negative constructions).

Origin

Late 19th century; earliest use found in Evening Observer (Dunkirk, New York). From pink + tea.

Pronunciation

pink tea

/pɪŋk ˈtiː/