gotcha day
n.— «We’ve been a family exactly five years, yesterday being the fifth anniversary of the Daughter’s arrival, her—our—Gotcha Day.» —“Gotcha Day” by Liz Aurbach Christian Science Monitor (Boston, Mass.) May 7, 1987. (source: Double-Tongued Dictionary)
Further reading
The word filibuster has a long and colorful history, going back to the days when pirates roamed the high seas. Today it refers to hijacking a piece of legislation. Plus, the language of yoga teachers: When doing a guided meditation, you may hear...
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...