The third rail
The third rail was a rail graffiti writers had to watch out for when writing because of its high voltage that could be fatal. In other words, untouchable.
Likewise, in politics, an issue or topic considered too taboo or controversial is denoted “a third rail”, where “touching on” it would be akin to “political suicide”.
In this interview, DOOM states that when he’s rhyming in his King Geedorah moniker, he tends to rhyme things that have to do with 3s, the same amount of heads that the original godzilla villain of the same name has.
In that particular style I was using, I was the character King Ghidra, from Monster Island. He’s a three-headed dragon, so on one of his styles is the parables of three, like flippin verses in parables of three, and using things like three syllables.”
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