Myrtle

Joe Sixpack is nursing a brew on a barstool next to some pencil-necked French guy. Pierre, drinking a Mai Tai, periodically (and subtly) sniffs his finger and murmurs to himself "Aaah, Fifi." After he does this a few times, Joe asks Pierre's what's up with the finger-thing?

"Oh, mon ami, I am sorry to disturb you, but I was just with my girlfriend, Fifi, and her lovely scent still lingers on my finger."

Joe says, "Yeah, I know whatcha mean," takes a huge snort of his arm, from the shoulder down to the fingertips and blurts out "Myrtle!"