UI can means a lot of things, based on the discussing topic. For instance, UI can mean User Interface, University of Ibadan etc.
It will sometimes mean 'overpowered' in the world of online. More commonly, OP means 'original poster' in ... refer back to that person as the responses grow.
What exactly is the meaning of the word Naija? Though, i know its a slogan commonly used to referred ... or Nigerian, but what exactly does Naija mean. Thanks