friend: yo dawg you wanna grab a beer tonight?  you: nachi' i already got plans with my bae
"its a slang term for no or "naw g" it has formed from not pronouncing "naw g" correctly and "naw" becoming "naa"or "na" and "g" becoming "chi" so nachi'
"friend: yo dawg you wanna grab a beer tonight?  you: nachi' i already got plans with my bae" What is the definition of "nachi'"?