A person who switches from one credit card or mortgage provider to another in order to take advantage of special introductory offers.
〈英，非正式〉为获优惠而不断更换信用卡（或抵押贷款供应商）的人
Example sentencesExamples
Life as a rate tart has been a new and enlightening experience.
However, I am looking forward to explaining how to be a rate tart to him, because you can't start too early - or too late, Gran!
Rate tart I may be, but opening a new account and moving my cash around is still a pain, and I want to do it as little as possible.
Over the past six months - for the first time in my life - I have been a rate tart.
One self-confessed rate tart explains how he has made the most of cheap credit, by switching frequently between deals.
While there will always be niche competitive products for the rate tart, this is a pricing model which has become increasingly unsustainable over the longer term.
Even better, by becoming a 'rate tart' and surfing your debt from one deal to the next, you could effectively create a long-term interest-free loan.
Besides, don't you want to join the band of rate tarts who are saving themselves a mint by regularly shopping around for a better mortgage deal?
I am somewhat of a rate tart.
Not many rate tarts are going to find this sort of ceiling a problem!
These days, thanks to the wonders of the Web, being a rate tart is an absolute doddle.
However, in the end, I decided against making my son a rate tart - for now, at least.