Green’s Dictionary of Slang

speech, talk.

1821		‘An Amateur’ Real Life in London I 454: Poll, says I, hold your luff—give us no more patter about this here rum rig.
1840		E. Howard Jack Ashore II 152: I talked rubbish – I fancied myself above and better than the world, and no longer a mortal man. But another luff, and I should have been a wreck.
1887		H. Caine Deemster II 158: If I was the ould Bishop’s son I’d hould my luff too.