We found 12 dictionaries that define the word down the drain:

General (10 matching dictionaries)

1. down the drain: Merriam-Webster
2. down the drain: Collins English Dictionary
3. down the drain: Cambridge Advanced Learner's Dictionary
4. down the drain: Wiktionary
5. down the drain: Dictionary.com
6. Down the Drain (film): Wikipedia, the Free Encyclopedia
7. down the drain: TheFreeDictionary.com
8. down the drain: Longman Dictionary of Contemporary English

Medicine (1 matching dictionary)

9. down the drain: Merriam-Webster Medical Dictionary

Miscellaneous (1 matching dictionary)

10. down the drain: Idioms

Definitions from Wikipedia (Down the Drain) ▸ noun:  a 1990 American comedy film. Phrases: goes down the drain, going down the drain, gone down the drain, went down the drain, go down the drain, more... ▸ Words similar to down the drain ▸ Usage examples for down the drain ▸ Idioms related to down the drain ▸ Wikipedia articles (New!) ▸ Words that often appear near down the drain ▸ Rhymes of down the drain ▸ Invented words related to down the drain