it doesn't really have a clear meaning but the purpose of saying it is making the person your speaking to confused. An individual uses this word in an attempt to make the other person say: "huh"?.
a converstion may start when a person says to another hey listen " ad slako". The other will respond automatically and say huh?. The person will reply back with another "huh".
the goal is to make fun of poeple and to make them feel stupid. it is highly used in the baccalaureate school.
Jon: Ted, ads slako on thursday?
Ted: huh?
Jon: huh?
Ted: i don't understand?
Jon: neither do I?