From Longman Dictionary of Contemporary Englishmake a/your pilemake a/your pileinformalRICH to make a lot of money He had made his pile in the wholesale business. → pile
Examples from the Corpus
make a/your pile• Then gently place the children into the helter-skelter, and make a pile of mats at the bottom.• He did not make his pile opening bazaars you feel sure. 