Just throughout the whole song, this is just the chorus. One Day Ima be so rich that I could buy my moms a house, have a Living room with a big TV and I could Still sleep on the couch, Ima have em' like Oy Vey, Holy Cow, Oh My God, Wow, x2 It seems I'm getting fresher every time they turn around like Oy Vey, Holy Cow, Oh My God, Wow.
https://lyrics.primoaccordo.net/mac-miller/oy-vey.htm