Green’s Dictionary of Slang

(Irish) hostile towards.

1922		Joyce Ulysses 333: Bertha Supple told that once to Edy Boardman, a deliberate lie, when she was black out at daggers drawn with Gerty.
1939		(con. 1880–90s) S. O’Casey I Knock at the Door 164: Even when I try to make up to her she’ll shake her head and say No, Johnny, I’m black out with you for what you done in church.
1979		H. Leonard A Life (1981) Act II: She was still talking to me when you were black out with us.
1995		A. Higgins Donkey’s Years 75: ‘I’m black out wiff yew!’ Rita Phelan screeched naggishly at Grogan.