Green’s Dictionary of Slang

1. (US) a drink.

1797		C. Prentiss Fugitive Ess. 67: Whether thou exercisest thy power in the full bowl of punch [...] or the circling mug of tod [DA].
1862		‘Artemus Ward’ Artemus Ward, His Book 114: He liked his tods too well, howsever, & they floored him, as they have many other promisin young men.
1872		G.P. Burnham Memoirs of the US Secret Service 98: He had long been possessed with a love of liquor, and he never ‘shirked his tod’ among boon companions.
1893		W.K. Post Harvard Stories 106: With ‘tod and tobac.’ the party disposed itself about the room.
1914		E. Wittmann ‘Clipped Words’ in DN IV:ii 121: tod, A drink, a toddy.

2. (US) a heavy drinker.

1866

H.L. Williams N.-Y. After Dark 63: The customers are [...] expressively named ‘bloats,’ ‘old soaks,’ ‘bummers,’ ‘rummies,’ ‘tods’ and so on.