Green’s Dictionary of Slang

(orig. US) rejoinder to the last speaker, that’s not all of it, either!

1908		‘Yeslah’ A Tenderfoot in Southern Calif. ii 22: It rains in sheets, in blankets, and in comforters, and then some [DA].
1909		W.M. Raine Brand Blotters (1912) 73: Never knew a hold-up wasn’t eight foot high and then some.
1919		F. Hurst ‘White Goods’ in Humoresque 160: This has got your Twenty-third Street dump beat a mile, and then some.
1928		M.C. Sharpe Chicago May (1929) 165: The men, however, took the hint — and then some. They knifed every bag within reach, and knifed copiously.
1935		(con. late 1920s) L. Hughes Little Ham Act I: I’ll blow you from here back before prohibition, and then some.
1939		P. Cheyney Don’t Get Me Wrong (1956) 70: I could go for you one hundred per cent an’ then plenty.
1942		Whizzbang Comics 98: He’s all that – and then some.
1957		‘Weldon Hill’ Onionhead (1958) 95: He knew whole works about cooking, and then some.
1964		Kerouac letter 9 Sept. in Charters II (1999) 382: Only hope you get enough money to realize the 2 G’s I owe you and THEN some.
1971		T. Thackrey Thief 429: Roger had all the shakes you can get and then some.
1985		J. Sherwood Botanist at Bay 92: She’s in possession of all her faculties and then some.
1997		C. Hiaasen Lucky You 314: ‘I’ll tell you whatever you want to know.’ ‘And then some,’ Mary Andrea said, under her breath.
2003		G. Tate Midnight Lightning 138: And then there’s James. Who somehow manages to hit all the notes they hit and then some.
2012		M. McBride Frank Sinatra in a Blender [ebook] I’ll pay ya more than I owe’n then some.