What does 42 down mean?

42 down meaning in Urban Dictionary

A nincompoop. A foolish individual.(Used by Jason Schwartzman in the television show "Bored to Death" in event 5 of period 2 in reference to a question he asked Vikrum earlier in the day in event in what the answer to "42 down" was at the papers crossword problem. He later calls Vikrum a "42 down".)