We found one dictionary that defines the word run off the rails:

Miscellaneous (1 matching dictionary)

1. run off the rails: Idioms

▸ Words similar to run off the rails ▸ Usage examples for run off the rails ▸ Idioms related to run off the rails ▸ Wikipedia articles (New!) ▸ Words that often appear near run off the rails ▸ Rhymes of run off the rails ▸ Invented words related to run off the rails