We found 19 dictionaries that define the word on the qt:

General (15 matching dictionaries)

1. on the qt: Longman Dictionary of Contemporary English
2. on the q.t, on the Q.T: Merriam-Webster
3. on the q.t, on the q.t: Collins English Dictionary
4. on the QT, on the Q.T: Vocabulary.com
5. on the q.t, on the qt, on the QT, on the Q.T: Wiktionary
6. on the q.t, on the q.t, on the qt: Dictionary.com
7. on the q.t, on the qt: Rhymezone
8. on the q.t, on the qt: FreeDictionary.org
9. on the QT, on the Q.T: TheFreeDictionary.com
10. On the QT: World Wide Words
11. On the QT: Phrase Finder
12. on the qt: Mnemonic Dictionary
13. on the q.t: Mnemonic Dictionary

Computing (1 matching dictionary)

14. on the QT: Encyclopedia

Medicine (1 matching dictionary)

15. on the QT: Medical dictionary

Slang (2 matching dictionaries)

16. on the Q.T: English slang and colloquialisms used in the United Kingdom
17. on the QT: Urban Dictionary

Definitions from WordNet (on the qt) ▸ adverb:  in secrecy; not openly Opposite: openly, publicly, overtly ▸ Words similar to on the qt ▸ Usage examples for on the qt ▸ Idioms related to on the qt ▸ Wikipedia articles (New!) ▸ Words that often appear near on the qt ▸ Rhymes of on the qt ▸ Invented words related to on the qt