What is the meaning of Jes?

Pronunciation spelling of just, representing African-American Vernacular English

to remain

to exist

yes

yes! (used to express pleasure, joy, or great excitement)

all right, I see, okay

to decay

to degrade, to wear out

yes

and

yes!, yeah! (used to express pleasure, joy, or great excitement)

alternative form of jest or jeste, often sarcastically as part of the phrase ma jes

alternative form of jesi

Source: wiktionary.org