Green’s Dictionary of Slang

jib v.1

[? jibber n.]

1. to leave behind, to abandon.

[Aus]H. Lawson ‘Payable Gold’ in Roderick (1972) 25: After a few fruitless weeks driving his mates jibbed on it [i.e. a mine].
[Aus]J. Furphy Such is Life 232: Mooney thinks he jibbed on singing because the women were there.
[UK]‘Doss Chiderdoss’ ‘Off the Mark’ Sporting Times 22 Apr. 1/3: Just because I jibbed my grub, she on me sat.
[UK]D.L. Sayers Busman’s Honeymoon (1974) 252: There must be something you’ll jib at. Will you refuse to put on a boiled shirt?
[Aus]D. Stivens Jimmy Brockett 162: I had the breeze up that he might jib at the whole thing when I’d hinted at what I wanted to do.
[UK]R. Hauser Homosexual Society 93: This means they have bamboozled their unhappy young men into a situation where they are trapped. If a young man jibs at it the girl tells her dad.
[UK]K. Sampson Awaydays 168: I’m jibbing all that.

2. to depart quietly, to slip away.

[UK]P. Cheyney Dames Don’t Care (1960) 91: A guy who is chasin’ around with a lotta other dames [...] ain’t goin’ to get burned up just because his wife gets wise and jibs.
[Aus]J. Morrison Black Cargo 66: ‘Boyd jibbed,’ I said sympathetically.
[UK]K. Amis letter 27 May in Leader (2000) 647: I was just about prepared to go on paying £2-12-6 a year to an organisation that does nothing for me, but when the price goes up to £5-5-0 I jib.
[UK]Partridge DSUE (8th edn) 618: from ca. 1850.