We found 2 dictionaries that define the word devil's toenail:

General (2 matching dictionaries)

1. devil's toenail: Merriam-Webster
2. devil's toenail: Wiktionary

Definitions from Wiktionary (devil's toenail) ▸ noun:  A gryphaea, a kind of extinct oyster. ▸ Words similar to devil's toenail ▸ Usage examples for devil's toenail ▸ Idioms related to devil's toenail ▸ Wikipedia articles (New!) ▸ Words that often appear near devil's toenail ▸ Rhymes of devil's toenail ▸ Invented words related to devil's toenail