From Longman Dictionary of Contemporary Englisha mountain of something/mountains of somethinga mountain of something/mountains of somethingLOT/LARGE NUMBER OR AMOUNTa very large pile or amount of something I’ve got mountains of paperwork to deal with. Her husband went off with another woman and left her facing a mountain of debt. → mountain
Examples from the Corpus
a mountain of debt• A trickster who constantly committed adultery - and then left her facing a mountain of debt.• In an opening speech for the defence the devastation of their herd was blamed on a mountain of debt and overfeeding.• Buoyant earnings in recent years have allowed the company to swiftly repay a mountain of debt.• He is struggling under a mountain of debt today. 