We found 6 dictionaries that define the word went off the deep end:

General (2 matching dictionaries)

1. went off the deep end: Merriam-Webster
2. went off the deep end: TheFreeDictionary.com

Business (1 matching dictionary)

3. went off the deep end: Legal dictionary

Computing (1 matching dictionary)

4. went off the deep end: Encyclopedia

Medicine (1 matching dictionary)

5. went off the deep end: Medical dictionary

Miscellaneous (1 matching dictionary)

6. went off the deep end: Idioms

Phrases: went in off the deep end, more... ▸ Words similar to went off the deep end ▸ Usage examples for went off the deep end ▸ Idioms related to went off the deep end ▸ Wikipedia articles (New!) ▸ Words that often appear near went off the deep end ▸ Rhymes of went off the deep end ▸ Invented words related to went off the deep end