rotten row, n. — Green’s Dictionary of Slang

rotten row n.

[rhy. sl.; Rotten Row is a riding track around London’s Hyde Park, used by 19C fashionable society; promenading on horseback ‘in the Row’ was a daily necessity for the smart]

1. a bow.

1909		J. Ware Passing Eng. of the Victorian Era.
1992		R. Puxley Cockney Rabbit.

2. a blow.

1969		S.T. Kendall Up the Frog.
1992		R. Puxley Cockney Rabbit.