What is what language is numa numa?

"Numa Numa" is not a language, but the title of a Romanian song called "Dragostea Din Tei" by the band O-Zone. The song became popular in 2004 when a video of Gary Brolsma, an American teenager, lip-syncing and dancing to the song on his webcam went viral. The video was titled “Numa Numa Dance” because of the repeated phrase “numa numa” in the song’s chorus. The phrase “numa numa” is Romanian for “no no,” which could be a reference to the lyrics of the song that say “Vrei să pleci dar nu mă, nu mă iei” which means "You want to leave but you won’t take me."