Just in case you can't watch the video for some reason:
- 1488 - Arguably the original dog whistle. "14" = The 14 words of some popular racist slogan; "88" = 8th letter of the alphabet is H, so HH, so Heil Hitler. "14" and "88" are also used just on their own sometimes, meaning the same thing.
 \\\(3 backslashes) - Associated with "Diagolon," a white nationalist group in Canada... appears in Twitter bios and stuff.- Canada's Red Ensign flag - Just Canada's old flag... but co-opted by white nationalists in like a "good old days" kind of way.
 - Totenkopf - Just a skull (crossbones optional). But it was used as a symbol by the Nazi SS, and is sometimes used in that context.
 - Sunnengrad/Black Sun/Sun Wheel - Apparently just straight up a Nazi symbol, just a more obscure one. Shakira used it by accident once.
 
Most of these were actually new to me, so TIL. Also picked up the term "irony poisoning" which is a useful way to label a thing that I've observed. Video is worth a watch if you can.