A statement inferring how you doing. Use is acceptable when one refers to sexy women, dank weed, humorous situations, and good times.
Person A: "I just downed three shots of jaeger."
Person B: "Howyedeen!!!"

Person A: "The hottest girl in our school is at our party?!"
Person B: "Wait, she's here? Howyedeeeen"
by PIT January 11, 2013
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