I'm not sure what site you are on but most of the time it means big black c***
British Born Chinese
It stands for British Broadcasting Company. Thanks
Big black co*k
In the personal ads that I have seen, LOS means Lost or Stolen.
Androgynous
For sex :)
Long Term RelationshipLTR in personal ads means long term relationship.
OHAC mean in Relationship
friends with benefits.
Bareback, or no condom
In Search Of
water sports