Boun or Bounch has to be said with feeling for it to sound right.. its another way of saying What Ever!!
Slang word in Birmingham
Ullah-man says it the best...
That Top looks fake "Bounch" wot u onna bout fake
B.P. for all the Bengalis is short for Bunni Power... it is translated Breast Power its used to describe women with Big Boobs
Kash: B.P. alert bp alert
Modhu: Where
Kash: to ur left
Modhu: Yaw thats wot i call BP