Green’s Dictionary of Slang

to surrender.

1864, 1867, 1870		Hotten Sl. Dict.
1873		Sl. Dict.
1924		(con. WWI) A.G. Pretty Gloss. of Sl. [...] in the A.I.F. 1921–1924 (rev. t/s) n.p.: chuck it up. Give in, surrender.