Green’s Dictionary of Slang

an excl. of surprise, annoyance, wonder etc.

1945		J. Maclaren-Ross Swag, the Spy and the Soldier in Lehmann The Penguin New Writing No. 26 48: King hell. What you bin up to, chum?
1971		J. Brooks Hat 50: ‘’Kin ’ell, mate! Catch me in a bloody place like China!’ ‘I’m most terribly sorry. Most presumptuous of me.’.
1990		(con. WWII) P. Fussell Wartime 93: ‘How are things up ahead, mate?’ ‘’Kin ’ell.’.
2001		OnLine Dict. of Playground Sl. 🌐 kinnel n. Exclamation of amazement.
2006		‘Mad Andy’ ‘Prowler’ in Road Hazards 135: ‘’Kin ’ell.’ ‘I could go down on you so fast you’d never know what hit you.’ l can’t help it. I blush.
2017		G. Gilmore Headland [ebook] ‘You asking me for money? [...] Kinell, mate, you must be fackin desperate’.