* To understand or appreciate something, especially jazz music or the "jive" slang of the time.
The word "dig" in this context means "to understand" or "to appreciate," and "jive" was a slang term for the lifestyle, music, and language of African American culture at the time.
So, "dig all jive" means something like:
* "I understand all the jazz and slang."
* "I appreciate all the cool stuff going on in the music scene."
* "I'm in the know about the latest trends."
It's a phrase that conveys an understanding and appreciation of the cultural scene, particularly the music and slang of the period.