We found 2 dictionaries that define the word knocking on heaven's door:

General (2 matching dictionaries)

1. knocking on heaven's door: Wiktionary
2. Knocking on Heaven's Door, Knocking on heavens door: Wikipedia, the Free Encyclopedia

Definitions from Wiktionary (knocking on heaven's door) ▸ adjective:  (idiomatic) Dying, close to death. ▸ Words similar to knocking on heaven's door ▸ Usage examples for knocking on heaven's door ▸ Idioms related to knocking on heaven's door ▸ Wikipedia articles (New!) ▸ Popular nouns described by knocking on heaven's door ▸ Words that often appear near knocking on heaven's door ▸ Rhymes of knocking on heaven's door ▸ Invented words related to knocking on heaven's door