Here's what we know:
* "Swagger" itself is not an Ebonic word. It originated in the 16th century, meaning "to walk or move with a proud, confident, or arrogant gait." It's derived from the Dutch word "swaggeren."
* Ebonics is a complex dialect of English. While it shares roots with African languages, it also has elements of British and American English.
* The term "swagger" has taken on different meanings and connotations in different communities and time periods. This is especially true within Black culture, where it's often associated with confidence, style, and coolness.
Therefore, it's impossible to say definitively who first used "swagger" in an Ebonic context.
It's important to understand that languages are constantly evolving and borrowing from each other. The word "swagger" has been adopted and adapted by various cultures and communities, making it difficult to pinpoint its origins in a specific dialect.