ordinary man, simple guy, " joe"?

An “average joe” may be translated as yon moun òdinè,  ensiyifyan, yon nonm senp, yon moun konsa konsa,  yon rapyay, as opposed to an extraordinary/important person ( yon grantèt, yon gwopalto, yon gwo chabrak, gwo boujwa)

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words