o.b.o.

美 
英 
  • abbr.价格可商议
  • 网络多用途船
o.b.o.
abbr.
— see also
o.n.o.
1.
价格可商议or best offer (used in small advertisements to show that sth may be sold at a lower price than the price that has been asked)
$800 o.b.o.
800 元(可还价)