Trade Hangout is a place to socialize and trade Limited items with other users.
Update Log: https://devforum.roblox.com/t/trade-hangout-update-log/248005
Earn bonus Dominoes each time you buy a Roblox-created item in Trade Hangout. To buy the item, paste the item's website address into the chat. You get 40% of the amount back in Dominoes. For example, if you buy a 100 Robux hat inside the game, you receive 40 Dominoes.