A-10 warthog
Brrrrr is the sound of fear when the A-10 shows up and decides to take a dump on your face with bullets.
Brrrrr was the sound I made when I saw the A-10 drop a bunch of bombs on my house.
Brrrrr came out of my mouth when the A-10 started shooting at my friend.
Brrrrr is what I heard when the A-10 made my dog cry.