Green’s Dictionary of Slang

1. (US) darned.

1938		(con. c.1910s) S.H. Holbrook Holy Old Mackinaw 198: He came face to face with the mountainous Jumbo. ‘Holy Old Mackinaw!’ exclaimed Halfpint. ‘Are you the bouncer in every jeasley saloon in this town?’.
1968		‘Richard Hooker’ M*A*S*H (2004) 204: I’m glad it happened, and I’m some jeezly glad it’s over.
1975		J. Gould Maine Lingo 146: Don’t be so jeezly hard to get along with!
1986		S. King It (1987) 19: Jeezly-crow! What now? [Ibid.] 376: A horse stall was his first thought, but who kept horses in the jeezly cellar?
1993		S. King Dolores Claiborne 5: Jeezly-crow, you ain’t never shook the ants out of your pants, have you?
2001		S. King Dreamcatcher 186: Honk that jeezly thing.

2. (US) inferior.

1992

UTSQ n.p.: What a jeezly party/dress/speech! [HDAS].