[tertiary]

Yeah, I'm in my 20s and I regularly use it without any confusion from the people I communicate with. Maybe its popularity varies with region?

[mod]

I'm a pool player and pretty well versed in the different billiard type games.

In Europe they're almost certainly more likely to say "snookered" instead, as 8 ball is not their main sport.

US players generally understand that reference, but I'm not sure non- players will.