The line comes from Borat, the 2006 mockumentary comedy starring Sacha Baron Cohen as Borat Sagdiyev, a Kazakh television journalist visiting the United States. Wa wa wee wa became one of the character's best known catchphrases, used in the film to express thrilled amazement. Clips and quotes spread widely through early meme culture, forums and video edits, and the phrase stayed recognisable long after the film's release. It is still dropped into reaction videos and soundboards today whenever someone wants an exaggerated, innocent sounding response to something impressive.