Green’s Dictionary of Slang

(UK/US Und.) to eat.

1865		Leaves from Diary of Celebrated Burglar 71/1: An’ I say, my lass, has thau had owt to ‘chuck’ sin’ thau left t’ boat?
1876		C. Hindley Life and Adventures of a Cheap Jack 192: Mo exclaimed to his man, ‘Chuck rumbo (eat plenty), my lad, for you will get no more till night’.
1931		D.I. Young ‘Chuck Away’ in Botkin Folk-Say 316: Listen, I hear them calling supper – ‘Chuck away, fellows’.
1933		Ersine Und. and Prison Sl. 27: chuck, v. (up). To eat.
1950		Goldin et al. DAUL 44/1: Chuck, v. To eat.
1972		E. Folb Urban Black Argot 135: Chuck to eat.