About International Yada Yada Yada Day
"The Yada Yada" is the 153rd episode of the American NBC sitcom Seinfeld. The 19th episode of the eighth season, it aired on April 24th 1997.
In the show, Seinfield used the phrase when he lost interest in something. If it happens to you today then it's only fitting to use "Yada yada yada".
The episode has become one of the most famous of the series, specifically for its focus on the phrase "yada yada". "Yadda yadda" was already a common phrase before the episode aired, used notably by comedian Lenny Bruce, among others.
The phrase may have originated with the 1950s "yackety-yack", 1940s vaudeville, or earlier. Seinfeld director Andy Ackerman remarked that while filming the episode he was struck by the fact that "yadda yadda" hadn't been the subject of a sitcom episode before, since it was such a universal everyday expression.
The Paley Center named "Yada Yada Yada" the No. 1 funniest phrase on "TV's 50 Funniest Phrases".
In April 2015, Michael W. Casby noted there was a Blah, Blah, Blah Day. He then declared July 23rd as Yada, Yada, Yada Day.
Seinfield also gives us another non-holiday, Festivus.