Green’s Dictionary of Slang

clammed adj.

starved.

c.1698		B.E. Dict. Canting Crew.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue .
1811		Lex. Balatronicum.
1845		Disraeli Sybil Bk III 13: I have seen the people [...] so clammed that I never tasted nothing but a potatoe.
1856		C. Reade It Is Never Too Late to Mend II 33: ‘How has he punished you?’ ‘Oh! sometimes it is clamming; nothing but a two-penny roll all day.’ [Ibid.] 94: ‘I was clammed to death.’ ‘Clammed?’ [...] ‘North-country word for starved’ explained Mr. Eden.
1865		Leaves from Diary of Celebrated Burglar 144/1: I wish tu ’eavens I’d a gottin a ‘drag;’ I’ll sooir git ‘clam’d’ (starved) wi’ this feeid.
1983		(con. 1940s) D. Nobbs Second From Last in the Sack Race 154: He was parched. He didn’t know what language to use, even to himself. He was in a linguistic no man’s land. ‘Ee, I’m fair clammed,’ had been left behind. ‘Gosh, I’m absolutely Hairy Mac Thirsters,’ had not yet arrived.