ˌrock ˈbottom BrE AmE noun
hit/reach rock bottom informal to become as unhappy, unpleasant, or unsuccessful as it is possible to be:
My personal life had hit rock bottom.
ˌrock ˈbottom BrE AmE noun
hit/reach rock bottom informal to become as unhappy, unpleasant, or unsuccessful as it is possible to be:
My personal life had hit rock bottom.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012