the never-never
UK informal uk/ˌnev.əˈnev.ər/ us/ˌnev.ɚˈnev.ɚ/
on the never-never 以分期付款的方式
using a system of payment in which part of the cost of something is paid immediately and then small regular payments are made until the debt is reduced to nothing
I don't like buying things on the never-never because they charge you such a lot in interest. 我不喜欢分期付款买东西，因为这样得支付高额利息。