rabbit-oh; rabbit-o noun a door-to-door seller of slaughtered rabbits AUSTRALIA,1902 From the cry “rabbit oh!”, used by the vendor to attract attention.
— Jim Ramsay, CopItSweet!, p. 76, 1977
A “fish-o” was familiar in many areas and, in some, a “rabbit-o”. — Nancy Keesing, LilyontheDustbin, p. 118, 1984