rap song...

can someone help me find this song ?
it sounds like it's by the pack but it's not.
the chorus part goes :
"-i rap
-i go
-i slap
-you know"
and it echos.

help ?
:]

wat dya hell?!?

r u sure dis is a real song?

Were gonna need more dan dat?

does it sound like it was dun in 80's , 90's?

man or woman?