Twenty-firster
noun, slang
noun, slang ·Uncommon ·Advanced level
Definitions
Noun
- 1 A person's 21st birthday. informal
"On his twenty-firster his father, in a characteristic gesture, had given him an Indian servant, and when Sandys was at the Embassy in Berlin, this splendid creature appeared at his dinner parties in a long white coat, rows of medals […]"
Example
More examples"On his twenty-firster his father, in a characteristic gesture, had given him an Indian servant, and when Sandys was at the Embassy in Berlin, this splendid creature appeared at his dinner parties in a long white coat, rows of medals […]"
Etymology
From twenty-first + -er.
More for "twenty-firster"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.