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A Flemish Sea Captain occurs while one partner is performing oral sex and blows their nose (ideally with a large amount of phlegm) onto their partner's genitals.
Suzy: "Oh yeah...oh yeah..."

Jonny: "I'm so stuffed up with all this phlegm...I can feel it dripping down my nose."

Suzy: "It's okay, just give me the Flemish Sea Captain"

* (sound of blowing nose)

Jonny: "Crap, I've got a nosebleed..."
by Poops McPooperton March 28, 2009
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