An expression of arrogance, meaning "I'm swingin' my dick in your face." It's origin is the code entry that generated a swingin' dick stick figure. In essence, a kind light-hearted way of just tellin' someone to fuck off. Also, a discreet way of doin' the same thing.
My boss was gettin' mouthy, so I said, 1-2-9 (one-two-nine), and went back to work with a smirk.
by bruthanumba3 April 6, 2008
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A Blumpkin is when a guy is a taking a dump and getting a blowjob at the same time.

Same idea as a blumpkin but your partner is upside down with a thumb in her butt.
John was in the bathroom getting a Blumpkie-9 plus one.
by representa2480 May 2, 2011
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