Advertising one's availability as a provider of some service, not necessarily a sexual service. For instance, a visual artist declaring willingness to take commissions รขยย to create the picture you want in exchange for a payment.
"can i post a blog whoring myself out?"
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Sometimes used generically for people of non-white complexion, for instance from India or China.
"Mao Zedong - our favorite boong!" (refrain in a song by Australian Maoists, 1970s)
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