Idk what it stands for but what it means is. Well in non-scientific terms you believe that your really ugly. But when usually your gorgeous. Then you go through all these un-needed treatments to become beautiful even though you already are
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.
professional
water sports
Bareback, or no condom
OHAC mean in Relationship
In Search Of
friends with benefits.
Pay to play
"short Message service" in other words text. It's not exclusive to personal ads.