The federal certification for members of the All-liaison division of Boodie Hos, who meet the criteria specified under the Association of Yearly Accredited Boodie Unified Hos (AYABUH).
See Allison over there? Yeah, she is a certified, card-carrying Buh Ho!
it refers to ones butt hole, also known as asshole or anal entrance.
John: Where's the pipe?
Andrew: In my Buh Ho.