Green’s Dictionary of Slang

excellently, superbly.

1863		G.W. Whitman in Civil War Letters 25 Feb. 88: We have first rate quarters here and are living tip top.
1877		‘’Arry on His ’Oliday’ in Punch 13 Oct. 160/2: Just go it tip-top while you’re at it, and blow the expense, is my plan.
1884		Leicester Chron. 5 July 12/5: We’ll get on tip-top once we get to Brighton.
1888		‘Rolf Boldrewood’ Robbery Under Arms (1922) 99: He’s gone off his head and stopped in some swell town in New Zealand [...] living tip-top among a lot of young English swells.
1899		R. Whiteing No. 5 John Street 43: You should see ’em going out o’ Saturday nights. Tip-top.
1901		J. Flynt World of Graft 18–19: It suits my purposes tip-top.
1922		Joyce Ulysses 72: – Wife well, I suppose? M’Coy’s changed voice said. / – O yes, Mr Bloom said. Tiptop, thanks.