OBO

American  

Or obo

abbreviation

1. or best offer: (used in an ad for something being sold, usually after citing the asking price, to say that the seller will consider accepting a lower price for the item).

   Used bike, together with panniers and water bottle, $200 OBO.

   All items at the garage sale are obo.

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Etymology

Origin of OBO

First recorded in 1970–75