Nig Sip Posted in N Best definition Nig Sip The last sip of a beverage, often associated with backwash. Unknown origin. I asked Jamal if I could try his drink and all the cheap ass offered me was the nig sip. How satisfied are you with the definition? Looking for Nig Sip meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 70 times.