We found 5 dictionaries that define the word flat back:

General (3 matching dictionaries)

1. flat back: Merriam-Webster
2. flat back: Infoplease Dictionary
3. flat back: Dictionary.com

Slang (2 matching dictionaries)

4. flat back: Green’s Dictionary of Slang
5. Flat back: Urban Dictionary

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