Green’s Dictionary of Slang

bean-tosser n.

the penis.

1834		‘The Bean-Tosser’ in Black Joke 24: His bean-tosser he carried it about in his hand, / Hey Randy, dandy O / He astonish’d them all, when he made a stand.
1890–1904		Farmer & Henley Sl. and Its Analogues.
c.1904		A. Crowley Snowdrops from a Curate’s Garden 36: The P....e of W...s [...] was lifting for the final effort his fantastically-tattooed bean-tosser upon the stupendous crinkum-crankum of the Imperial fuckstress.