He's talking about how Corey and Duncan are known for getting tons of T$ from the Offers.
If you go to Page 5 of the Offers page (you need to have less than 30T$), there is an AMAZON offer. You can pay Amazon a certain amount of money and in exchange, you will get T$.
Pretty much, it's unlimited and it's YOUR CHOICE in how much T$ you want.
That's why Corey1 and Duncan have like every outfit on the Auctions lol.