An Italian woman's vagina that possesses large flaps (labias).
I was in Italy last summer and I experienced plenty of flapiano.
When giving oral to a Woman or when needed/ appropriate, her labias are used to blow ones nose for pleasure
"She was really getting into it, before I salmon handkerchiefed her"
"I needed to blow my nose, and since i was already down there... Salmon Handkerchief!"
"her labs were so big!; perfect for a Salmon Handkerchief!"
"Its Salmon Handkerchiefing time!"