There's a (not so) fine difference between the rolled/trilled R [1] and the guttural/uvular R [2]. The former is indeed produced by vibrating the tongue
I notice you don't link the Wikipedia page about the rolled R [1], probably because it contradicts you. There are many kinds of rhotic trills and the guttural R (aka uvular trill) is one of them.
Another fun trill is the bilabial one [2], like imitating a fart with your lips. It doesn't really qualify as a rolled R, though.
That’s the stuff. Thanks for the vocab lesson. And look at that map. Most of northern and Central Europe is a guttural r.
You trilled R motherfuckers in French class ignored your poor teachers’ pained expressions for years, while the rest of us wanted to go up, pat them, and say it’s okay, we share your pain.
Apparently I have some unresolved hostilities toward some people who got A’s but had disastrous pronunciation.
Another fun trill is the bilabial one [2], like imitating a fart with your lips. It doesn't really qualify as a rolled R, though.
[1] https://en.wikipedia.org/wiki/Rolled_R
[2] https://en.wikipedia.org/wiki/Bilabial_trill