Green’s Dictionary of Slang

a euph. for damned adj.

1837		‘The Devil and Johnny Dixon’ in Bentley’s Misc. Mar. 258: May he who would not, on bare and bended knee, drink this toast, be rammed, crammed ---’ ‘And damned!’ roared Magan.
1938		S. MacManus Rocky Road to Dublin n.p.: ‘Where’s the other scoundrels, you rammed wee rascal?’ he yelled [BS].
1997		Share Slanguage.