Green’s Dictionary of Slang

useless, worthless, euph. for fucking adj.

1936		M. Harrison All the Trees were Green 265: I arrived in London without a tossing coin.
1958		C. Lee diary 2 Feb. in Eight Bells & Top Masts (2001) 37: He can already see that I’m a tossing nuisance.
1986		F. Taylor Auf Wiedersehen Pet Two 100: Waterfall? Who wants to see a tossin’ waterfall? [Ibid.] 222: Most people can’t understand a tossin’ word you say.