A person who sucks semen from balls and/or dick.
You know that girl Jenna? She's such a semen syphoner.
by Salliemae September 23, 2015
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A girl who syphons semen into her. aka a megahoe.
That chick has done like a bazillion people this year. She is such a semen syphon.
by Such ma jewce April 24, 2009
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