Also the place where I live - a small suburb of
Dublin,
Ireland. The name itself is an
anglicisation - from "Domhnach Broc" -
The Church of St. Broc in
Irish. It came to mean
fight or
brawl for the reputation gained by the
Donnybrook Fair which ran there from about 1204. I've never heard it used seriously, but I'm told it's common enough in Australia. See my writeup on
the fair from more info.