defined by the famous osama. originated in east finchley.
when your name is called out in the school register this is what u reply. a word which dignifies a sign of respect for the teacher and all other classmates. understand that u gotta say it in the original duck fashion dat made it so famous
can also be used as a substitute instead of a sneeze
You: aiyo carlos
You: whats dat chick u chopped the other day she a good beat?
Me: YEFAA u dun kno