The millennial whoop is a melodic pattern alternating between the fifth and third notes in a major scale, typically starting on the fifth, in the rhythm of straight 8th-notes, and often using the "wa" and "oh" syllables. It has been used extensively in 2010s pop music.
—Music blogger Patrick Metzger
The term was coined by the musician Patrick Metzger, who described it in a blog entry on The Patterning in August 2016. He suggested that, while the millennial whoop gained popularity from the late 2000s to 2010s, it has probably always been around. An earlier use can be heard in the 1983 song "Jungle Love" by Morris Day and the Time.
The 2017 song "Millennial Whoop" by American rock band the Pilgrims was written as a response to the idea of older generations looking down upon the younger for using such tropes: the song makes use of the interval pattern.
In 2013 songwriter Ally Burnett tried to sue Carly-Rae Jepsen and Owl City over their 2012 song "Good Time", arguing similarities to her 2010 song "Ah, It's a Love Song" and its use of the Millennial whoop. Jepsen settled out of court, but Owl City won.
One notable use of the millennial whoop is in the 1987 theme song by Mark Mueller for the American animated television series DuckTales which ran for a total of 100 episodes. It does not occur in some other language versions of the 1987 theme it does occur in the 2017 remake of the theme but not as prominent.
Songs where the millennial whoop appear include: