[yorwba]

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.

[1] https://en.wikipedia.org/wiki/Rolled_R

[2] https://en.wikipedia.org/wiki/Bilabial_trill

[thaumasiotes]

> Another fun trill is the bilabial one [2], like imitating a fart with your lips.

The normal (American) English term for this is "raspberry".