a metaphor for a large dildo. it refers to the u47 microphone made by the German company called Telefunken, it was originally used by Frank Zappa in his album Joe's garage. the cylindrical shape plus the fact that the name sounds like fucken you, lend to the humor
Larry: we got a present for you

marry: what is it, what are you ganna give me
Larry: it looks just like a Telefunken u47... you'll love it
marry: with leather?
by aman of the box May 21, 2010
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