Make a/your pile
Definition 1 of 1
Pro Tip 1/3American Dream
The phrase often relates to the idea of achieving financial success, especially in the U.S. 
With just a laptop, she was determined to make her pile and live the American Dream.
Pro Tip 2/3Colloquial Use
Used in casual conversation, not in formal writing or speeches. 
He's not into fancy stocks; says he'll make his pile through hard work.
Pro Tip 3/3Success Story
Implies a significant personal achievement, often shared in narratives of success. 
She made her pile inventing an app and now mentors young entrepreneurs.