This use of the word originates from the character Bruce Bogtrotter from Roald Dahl's Matilda, who steals a piece of The Trunchbull's chocolate cake, and is consequently required to eat the whole thing as punishment (but he manages this without too much difficulty, to the Trunchbull's annoyance).
Origianlly a very derogatory word for an Irishman, not always used as an insult nowadays.
ii)a women dressed up especially for a night a revelment, but who still looks abhorrent.
Wild examples are not uncommon, natural habitats include wetherspoons and yates wine lodge.
See also singletrackworld.