I am stunting and flossing and
Saving my money and I’m hella happy, that’s a bargain, bitch

from Macklemore and Ryan Lewis (Ft. Macklemore & Wanz) – Thrift Shop Lyrics on Rap Genius

Meaning

He’s got these badass clothes on and he didn’t even have to break the bank for them like most people.

stunting/flossing means to “show off” so he’s showin' off all his swag and he’s happy that he got it at such a good deal

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