Short for Bitches Need Slappin.
The abbreviation 'bns' in Yahtzee means 'bonus'. You see it in the box below the left column where you need to get as many of each number as you can. If you manage to get enough of those numbers to add up to 63 you get a 35 point 'bns' or bonus.
BNS Madhumati was created on 1998-02-18.
BNS Bangabandhu was created on 2001-06-20.
BNS Bangabandhu ended on 2002-02-13.
BNS Kapatakhaya was created on 1977-07-14.
BNS Sangu was created on 1977-10-28.
BNS Gomati was created on 1979-06-01.
BNS Turag was created on 1978-03-03.
BNS Karatoa was created on 1979-10-06.
St. Josephs BNS was created in 1866.
BNS Osman was created on 1989-11-04.