pour sth into sth

pour something into something
— phrasal verb with pour verb
US /pɔr, poʊr/

to give a lot of money or effort to something with the idea of making it successful:
Most of the money raised by the new taxes will be poured into the arena project

pour something into something phrasal verb
if people pour money into something, they provide a lot of money for it over a period of time, in order to make it successful
They’ve poured thousands of pounds into developing the business.