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the act of vomiting on someone's ass and using it as lube to fuck them. the term was first originated in 1920 under the holy see of pope benedict xv one night in the vatican. rumours swept america by storm when talk of cardinal merry del val's homosexual encounters were finished with del val vomiting onto a bishop's asshole. americans coined the shocking term "messy beacon" when more rumours appeared that new york city mayor gandolph beacon gave his homosexual lover a messy beacon of his own. and so the rest was history!
dude, last night i got really drunk at this gay bar my girlfriend dragged me to and before you know it i gave this guy a messy beacon.
by Charles McCloud February 17, 2007
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