bruaah

Bruaah is similar to saying YEAH (meant as an exclamation) like in hip hop songs and lingo. It's mostly used in Punjabi pop and Bhangra songs, and Punjabi people say it when they are happy or high or they have something to be excited about. It's used with an extended sound so some people write it as brruaahhhhhh, bruahhh, burraahhh, etc. Take the liberty to add a's and h's.
It's an added noise put into songs by often Punjabi singers in Punjabi music. It is often yelled out phrase said by Punjabi's in bhangra which is a form of dance and music formed in Punjab. It complements the song, as it is common for bhangra music to have yelled out random phrases that add to its energetic vibe.