John’s dick is Chekov’s gun
It only came to our attention recently that Chekov’s gun as a symbol was being used in Sherlock series 4, however, it’s actually been the main motivator behind Sherlock for the last seven years. “Chekov’s gun” is a writing technique, that says don’t put unnecessary details into your stories.
So when we saw John’s gun at the beginning of A Study in Pink:
We knew that by the end of A Study in Pink, he was going to fire it:
However, there’s more to John’s gun in A Study in Pink than most people might realize.
We hear Moriarty introduce himself in The Great Game by asking, “Is that a British Army Browning L9A1 in you pocket, or are you just pleased to see me?”
Sherlock replies, “Both”.
Here is explicit proof that guns in this show are meant to be seen as penises. Sherlock just compared an erection to that gun. It happens later in The Abominable Bride, as well, if you think I’m just making this all up.
“It’s dangerous to finger a loaded firearm in the pocket of one’s dressing gown, or are you just pleased to see me?”
Considering this is all in Sherlock’s head and Sherlock is horribly repressed, Moriarty mentioning that gun/dick again only slides home this symbol.
And if you needed any more proof, here’s a picture of Sherlock thinking about Moriarty maintaining eye contact while getting on his knees and putting a gun on his tongue:
Is it even subtext anymore when they’ve openly admitted guns are penises?
This all brings me back to Chekov’s gun and A Study in Pink.