Cost per Orgasm: The amount of money invested in a relationship divided by the number of orgasms achieved during that relationship. Typically, the CPO is very high during the formation (dating) stages of the relationship. Once the relationship has formed the CPO sharply declines then gradually increases over time (usually during marriage) until the CPO exceeds the original formation stage.

β€œThe first three months are great; we’re going at it like rabbits. My CPO is at an all time low.”
by LeeC December 12, 2006
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Certified Pop Off. An event that you would consider more enjoyable that your typical Friday night. You know something was a Certified Pop Off if everyone is talking about it.
That concert last night was a CPO!
by SheeshM August 15, 2017
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An acronym for "Creative piece of shit"created by a group of outcast.Also used to mean sexually active ,sexually creative, or just all around creative.
by IAmAWESOMEjK June 03, 2016
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a decision made in a court of law giving a government organization, etc. the right to buy private property if it needs the land to build something that will be of use to the public, such as a new road:

After the compulsory purchase order (CPO) for a road or motorway has been granted, notice of the order is published by the Local Authority.
by fire investment October 28, 2011
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