We found 2 dictionaries that define the word jaw-jack:

General (1 matching dictionary)

1. jaw-jack: Wiktionary

Slang (1 matching dictionary)

2. jaw-jack: Green’s Dictionary of Slang

Definitions from Wiktionary (jaw-jack) ▸ verb:  (Canada, US, slang) To talk or chatter; to jaw. ▸ Words similar to jaw-jack ▸ Usage examples for jaw-jack ▸ Idioms related to jaw-jack ▸ Wikipedia articles (New!) ▸ Words that often appear near jaw-jack ▸ Rhymes of jaw-jack ▸ Invented words related to jaw-jack