Vocabulary

ਰਾਜ ਸਿਆਂ
Raj syaan

Raj, wise one / bro — the lyricist Raj Ranjodh signing his name. 'Syaan' = wise/elder, used as a respectful address

proper noun
In this song
Balle Jatta · Diljit Dosanjh
Verse 4
ਓ, ਰਾਜ ਸਿਆਂ ਤੇਰੀ hype ਆ ਬਾਹਲੀ
o, Raj syaan teri hype aa baahli
Raj bro, your hype is through the roof