No, we say “FUCK! It’s cold”.

Tbh, I don’t think you really understand how the non-rhotic accent works. In this case, the /r/ would be fully pronounced, as it would be at the start of a word. Say bread, elongate the r and skip the ed part and you have what it sounds like.

If you’re very used to hearing the bunched r, the British version still might sound softer, but even in the USA (where most people use bunched r) it’s still common to hear an r made with the tip of the tongue behind the teeth (upper or lower).

I’m ignoring the other r sounds, but you do find a lot of them across the various regional English accents.

Fookin wank shrinka innit

Brrrritish

Does anyone actually say brr?? 🤔

We kind of go “brur”.

In French it sounds like Chewbacca

I dont even say “brr” i jist go “fuck its colllld” and shake on the l.

I’m Australian. I say something closer to “buh”, but I introduce vibrato to the sound down near my vocal cords, rather than by trilling the R in my mouth

I don’t have the answer but I’ve always thought it was interesting that British-English spells the filler words that Americans normally write as “uhh” or “um” as “er” or “erm”

Now I’m just imagining a Scotsman pronouncing it and really rolling that R 😂

Poorly

If it is particularly taters out it can be done by clenching your teeth, lips together but not firmly closed, saying ‘buh’ and blowing. The ‘rrrr’ is produced by your lips flapping together. It is quite fun to do

I’d have thought different regions have their own way of saying they’re cold - for example up north, I’m “nithered” is a reasonably common way to say you’re cold…

Not usually, I wouldn’t, but if I would I would pronounce the r like short oo with vocal fry