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1.
This is term coined out of Fulton, N.Y. It is the act of someone placing their lips around someone elses anus while the person blows a fart in their mouth. The lucky receipiant then holds it in their mouth until he or she comes up and blows it in the others face.
"she wasnt to happy last night when i showed her what shit gunning was"
by jpoto24 April 02, 2009