Green’s Dictionary of Slang

crib v.5

[SE crib-biting, of a horse, to bite the crib or fodder container]

to complain, to grumble (about); thus cribbing n.

(con. 1918) A, Beaman The Squadroon 105: Bill [...] was given neither to optimism nor to cribbing.
[UK](con. WWI) Fraser & Gibbons Soldier and Sailor Words 66: Crib, To: To grumble.
[UK](con. 1916) F. Manning Her Privates We (1986) 190: What are you cribbin’ the officers for? [...] Aren’t you goin’ in for a commission yourself?
[UK]K. Mackenzie Living Rough 256: Some of them are always cribbing.
[UK]Manchester Eve. News 12 Dec. 2/6: [headline] He Got the Pip [...] / Not satisfied with the choice of unrationed food [...] / Anti-Humbug must crib about ‘Bread and Milk’.
[Ire](con. 1940s) B. Behan Borstal Boy 20: That’s the Irish [...] Never done cribbing.
[UK]B. McGhee Cut and Run (1963) 101: I wasn’t really cribbing about my sentence. I was quite happy with a ‘carpet’.
[Ire]P. Boyle All Looks Yellow to the Jaundiced Eye 150: If he was just three-quarter drunk, he’d be in here cribbing and cursing and chawing the fat until he had driven some one of us into a wrangling match.
[UK]J. McClure Spike Island (1981) 312: So things altogether haven’t worked out for me [...] but I’m not cribbing.
[Ire]J.B. Keane Love Bites and Other Stories 11: If some may crib about forcing her into alcoholism I say to these to come and have a gander at the lovely chicks she hatched.
[Ire]L. McInerney Rules of Revelation 152: ‘If he cribs you just tell him to fuck off’.