We found 6 dictionaries that define the word off hook:

General (2 matching dictionaries)

1. off-hook: Wordnik
2. Off-hook: Wikipedia, the Free Encyclopedia

Computing (3 matching dictionaries)

3. off hook: CCI Computer
4. I T Glossary (No longer online)
5. Off hook, off-hook: Encyclopedia

Tech (1 matching dictionary)

6. off-hook: Webster's New World Telecom Dictionary

Phrases: off the hook, ringing off the hook, rings off the hook, ringed off the hook, ring off the hook, more... ▸ Words similar to off hook ▸ Usage examples for off hook ▸ Idioms related to off hook ▸ Wikipedia articles (New!) ▸ Words that often appear near off hook ▸ Rhymes of off hook ▸ Invented words related to off hook