"To push your luck" means to take a chance when you've already done something risky.
To Chit Chat is to talk about general things that aren't very important.
"To learn the ropes" is an expression. It means to learn how to do something, especially something related to work.
When someone says ''eat my dust," they are saying to their competitors in a race situation that they are confident they are going to win the race, leaving everyone else far behind.