(chiefly UK, informal) Of very high quality, tip-top.
1914, H. H. Munro, When William Came, ch. 5:"I say, this is a top-hole omelette," said Ronnie.
1916, Kathleen Norris, The Heart of Rachael, ch. 1:"But Carol's different—she's square, she is; she's just top-hole—if you know what I mean—she's the finest ever," finished Miss Sartoris.
1921, Ralph Connor, To Him That Hath, ch. 1:"My word, old chap, that is top-hole tennis," said the Englishman, warmly congratulating him.