What is numa numa yay language?

"Numa Numa Yay" is not a language, but rather a phrase from a popular internet meme. The meme originated from a video of Gary Brolsma lip-syncing and dancing along to a song called "Dragostea Din Tei" by the Romanian music group O-Zone. The phrase "Numa Numa" is actually a misheard version of a line in the song, which is "Nu mă, nu mă iei,” meaning “you won’t take me, you won’t take me." The meme became popular in the early 2000s and has since been used in various forms of media, including video games, television shows, and movies.