Vocabulary

ਸ਼ੈਅ
shai

thing, person, figure. 'Vaddi shai' means a big deal, an important figure.

noun
In this song
Top Fella · Karan Aujla
Verse 1
ਵੱਡੀ ਸ਼ੈਅ ਕੋਈ ਲੱਗਦੀ ਏ ਜਿੰਨੇ ਬੰਦੇ ਆਲੇ-ਦੁਆਲੇ
vaddi shai koi lagdi ai jinne bande aale-duaale
Must be someone big, look at all the people around him