The clever dripper is pretty nice pour over cone with a shut off valve.

When I’m making just one cup of coffee I use an aero press, for 2+ cups I use the clever dripper.

It’s okay not to know. English is spoken in a lot of different places in different ways. I doubt that in your 40 years you’ve explored this.

Google Trends shows that it’s most popular in Malaysia and the Philippines, relative to its use in other countries.