Green’s Dictionary of Slang

1. killed, dead.

1823		Egan Grose’s Classical Dict. of the Vulgar Tongue n.p.: Croaked. Hanged.
1823		‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc.
1859		Matsell Vocabulum.
1879		Cincinnati Enquirer 7 Sept. 10/7: Croaked, Handed in His Checks, Gone to That Bourne, Given His Last Show, Skipped the Earth, Flying Above – That one more has gone to his final rest.
1900		Flynt & Walton Powers That Prey 180: They picked him up croaked.
1910		P.W. Joyce Eng. As We Speak It In Ireland (1979) 242: Croaked; I am afraid poor Nancy is croaked, i.e. doomed to death.
1927		Nichols & Tully Twenty Below Act III: You won’t say that after I’m croaked.
1937		‘Boxcar Bertha’ Sister of the Road (1975) 205: I thought I’d get croaked or the rope.
1947		C. Willingham End as a Man (1952) 46: Boy, he looks like he’s croaked.
1955		B. Appel Tough Guy [ebook] If only Joey’d got himself croaked or broke a leg.
1960		C. Himes Big Gold Dream 59: Why did Rufus get croaked after he had already completed his part of the deal.
1971		R. Woodley Dealer 25: ‘I’d like to see [my brother] be a nine-to-fiver, you know. [...] I would not like to see him get croaked’.
1995		J. Cameron Vinnie Got Blown Away 79: Vinnie’s dead Nicky. Vinnie’s brown bread, croaked, Vinnie’s history.
2002		(con. 1967) J. Laurence Cat from Hué 442: Of all the words American troops used to describe death in Vietnam — aced, blown away, bought it, croaked, dinged, fucked up, greased, massaged, porked, stitched, sanitized, smoked, snuffed, terminated, waxed, wiped out, zapped — the one I heard most was ‘wasted.’.

2. very drunk.

1933

‘William Juniper’ True Drunkard’s Delight 225: Our tippler may further be [...] croaked.