The revealing of non-obvious cultural or literary references is why the “ISWYDT” convention exists. The alert reference-spotter gets the fun of knowingly flagging it, and other readers who didn’t SWYDT get to do some ignorance-fighting by either googling what you wrote or simply asking for clarification.
You can self-flag your cultural and literary references with “(SWIDT?)” or similar, but it’s usually more fun with a teammate.
Self-indication is the only reliable method, since there are whole swaths of references that only the poster will ever get. You can’t count on a teammate nudge-nudging it.
Wink, wink, say no more.
I think I’m just going to start saying things that sound like references, but aren’t just to see how long it takes people to notice. Tally-ho with a gobsmack, geezers!
That’s from The Unpleasantness at Blandings Castle, by Dorothy S. Wodehouse.
That idea is replete with stinkiosity.
I thought it was The Goodies, season 3, episode 5.