A euphamism for the sharpened orafice that investment banking companies, such as Goldman Sachs, use to suck cash away from the general public, in both the US and other countries.

Used by Matt Taibbi in an article in Rolling Stone to describe Goldman Sachs.
"The first thing you need to know about Goldman Sachs is that it's everywhere. The world's most powerful investment bank is a great vampire squid wrapped around the face of humanity, relentlessly jamming its blood funnel into anything that smells like money."

== Matt Taibbi, Rolling Stone, July 13, 2009
by kk626kk December 28, 2010
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a vagina during its menstrual cycle.
calm your blood funnel bitch.
by Peter W April 8, 2006
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