Green’s Dictionary of Slang

dot and carry one n.

1. a derog. term for a second-rate teacher of writing or mathematics.

[UK]Grose Classical Dict. of the Vulgar Tongue ms. additions n.p.: Dot and Go One [...] also a Jeering Appellation for an inferior writing Master or teacher of Arithmetic.
[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.

2. (also dot and go one) a person with a wooden leg or a club foot [the dot is the impression made by the bottom of the wooden leg, in an era before properly moulded ‘feet’ were available, while the good leg is ‘carried’].

[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Dot and go one,[...] generally applied to persons who have one leg shorter than the other, and who, as the sea phrase is, go upon an uneven keel.
[UK]Lex. Balatronicum.
[UK](con. early 17C) W. Scott Fortunes of Nigel I 115: That was his father [...] You old dotard Dot-and-carry-one that you are.
[UK] ‘Lay of St. Nicholas’ in Bentley’s Misc. Apr. 498: How he rose with the sun, limping ‘dot and go one’.
[UK]W. Leman Rede Sixteen String Jack I vi: Of all the rummy chaps I ever did see, that dot-and-carry-one-of-old poetry is the queerest; he’s as green as a babby, and as deep as a wooden spoon.
[UK]J. Lindridge Sixteen-String Jack 150: Vell done old dot-an’-carry-one, the werry cove I’ve been praying for.
[UK]A. Mayhew Paved with Gold 101: Besides these were messrs. ‘Cherry-legs’ and ‘Dot-and-carry-One,’ and ‘Shivery-shanks’.
[US]J.R. Lowell Biglow Papers 2nd series (1880) 23: Him thet wuz nicknamed frum his limp Ole Dot an’ Kerry One.
[UK]Hants. Advertiser 20 May 3/2: There could be no mistaking the marks of a ‘dot-and-carry-one’ burglar.
[UK]A.N. Lyons Hookey 3: Blow me if it ain’t my old ‘Dot-an’-carry-One’.
[Aus]‘Henry Handel Richardson’ Aus. Felix (1971) 52: Everyone can see you’re as mad as can be because you can’t bring your old dot-and-go-one to the scratch.
[UK]Edinburgh Eve. News 31 Dec. 8/5: The miner who, though badly lamed, could facetiously dub himself ‘Dot and Carry one’.

3. the state of lameness; walking with one lame leg .

[US]St Paul Dly Globe (MN) 16 Aug. 8/2: Jackson threw up the sponge and went home with a ‘dot and carry one.’ One of his ledgs being out of kilter he has not since showed up.