The original
definition is slowly being replaced by the grime
definition. Dunno or Dunn'no is referenced after or during a saying of which the
general public are assumed to not knowing - hence hightening your reputation on the mere basis that you know something others dont.
It is also known as a "big up" or shout out.. "Big up wiley, dunno"
"Dunno the youth... dunno the youth" (
pronounced - Dun'No)
"Dunno... Ice Kid" (pronounced - Dun'No)
"I went to see batman
the other day" was it good? "yeh dunno" (pronounced - Dun'No) (i.e. you saw it and it was
really good)