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"Flarfing" refers to the act of slurping out the contents of another's anal cavity, after it has been ejaculated and vomited into by some person(s).

A related subcategory, "flarfblasting" consists in expelling by means of flatulence the vomit and ejaculate contents of one's anus into the mouth of another (who could or could not be the person who deposited those contents), positioned directly behind the anus.
I last saw Charles flarfing a homeless man's herniated anus.
by Leximus August 30, 2009
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