We found 7 dictionaries that define the word out of one's head:

General (6 matching dictionaries)

1. out of one's head: Merriam-Webster
2. out of one's head, out of one's head: Collins English Dictionary
3. out of one's head: Wordnik
4. out of one's head: Wiktionary
5. Out of one's head, out of one's head, out of ones head: Dictionary.com
6. Out of one's head: TheFreeDictionary.com

Slang (1 matching dictionary)

7. out of one's head: English slang and colloquialisms used in the United Kingdom

Phrases: to be out of ones head, more... ▸ Words similar to out of one's head ▸ Usage examples for out of one's head ▸ Idioms related to out of one's head ▸ Wikipedia articles (New!) ▸ Words that often appear near out of one's head ▸ Rhymes of out of one's head ▸ Invented words related to out of one's head