Green’s Dictionary of Slang

rams n.

[ety. unknown]

delirium tremens.

[US]Wash. Times (DC) 14 Sept. 10/4: Rams — Delirium tremens.
[US]F.H. Tillotson How I Became a Detective 94: Rams – Delerium tremens.
[UK]‘William Juniper’ True Drunkard’s Delight 247: Delerium tremens, or [...] rams.
[US]L. Pettiway Workin’ It 9: But I guess you call it the ‘rams’ when people be drinking. Just lose their mind and want to fight and stuff.