it's a khmer term about a feminine's affection and love to a masuline. Simply mean i love you. "O" define as feminine and B is a masculine
Nary: "o sl b"
Nara: "b sl o too" ( i love you too)
6π 2π
Itβs mean her love your (dick).
Girl:O sl Kdor b thom nas!
Boy:Thank you o!!