Green’s Dictionary of Slang

walking adj.

SE in slang uses

In compounds

walking gentleman (n.) [orig. theatre walking gentleman, ‘walking gentleman: an actor playing a part requiring gentlemanlike appearance, but with little or nothing to say’ (OED)]

one who poses as something but lacks the expertise to back the image; also attrib.

[UK]Egan Life and Adventures of Samuel Hayward 69: As an ‘Actor of all Work’ on the great theatre of the world [...] his ambition prompted him to attain something more than the character of a walking gentleman.
[UK]W. Clarke Every Night Book 75: The walking gentlemen, to run away with rich wards.
[UK]Satirist (London) 27 Nov. 266/3: The lines most difficult to fill up in a theatre, says C. Kemble, are juvenile tragedy and walking gentlemen.
[Ire]W.H. Maxwell Rambling Recollections of a Soldier of Fortune 219: A number of meritorious soldiers like myself were permitted to exchange the sword for the plough-share, and become members of that respectable portion of the Connaught community, usually designated ‘walking gentlemen.’.
John Bull 22 June 392/2: The merest commonplaces of modern plays and novels [...] a toad-eating captain [...] a couple of ‘walking gentlemen’.
[US]Life in Boston & N.Y. (Boston, MA) 27 Apr. n.p.: The lover or ‘walking gentleman’ [...] who dresses faultlessly, defies his grouty old uncle, makes love gracefully [etc].
[UK]Bristol Magpie 14 Sept. 3/2: For me no ‘walking gent,’ forsooth.
[Aus]Bulletin (Sydney) 22 Oct. 14/3: Apparently the [Shearers’] union is beginning to suffer from the ‘walking gentleman’ sorrow, also from too little practice and too much theory.
[UK]Mirror of Life 10 Feb. 11/4: sententious old lady: ‘And what part do you play in the great drama of life?’ Ragsley: ‘Walkin’ gentleman’.
walking mort (n.) [mort n.1 (1)]

(UK Und.) an unmarried female beggar, often accompanied by a child, who claimed to be widowed and begged for her and her offspring’s keep.

[UK]Harman Caveat for Common Cursetours in Viles & Furnivall (1907) 67: These walkinge Mortes bee not maryed: these for their vn-happye yeares doth go as a Autem Morte, and wyll saye their husbandes died eyther at Newhauen, Ireland, or in some seruice of the Prince. [...] Manye of these hath hadde and haue chyldren.
[UK]H. Chettle Kind-Harts Dreame H1: About Hampshire there wandered a walking Mort, that went about the Countrey [...] and would sing sometime to serue the turne.
[UK]Dekker The Belman of London D4: TheWalking Mort sayes shee is a widow, whofe husband dyed either in the Portugal voyage, was slayne in Ireland, or the Low Countries, or come to his ende by fome other mis-fortune, leauing her so many small infants on her hand in debt, whome not being able by her honest labour to maintaine, she is compelled to begge.
[UK]R. Brome Jovial Crew II i: See, in their rags, then, dauncing for your sports, / Our Clapper Dugeons and their walking Morts.
[UK]W. Winstanley New Help To Discourse 136: Walking Morts, are such as pretend themselves Widdows, travelling about from County to County, making laces upon staves, Beggars tape, or the like, they are subtil Queans, hard hearted, light finger’d, cunning in dissembling, and dangerous to meet, if any Ruffler or Rogue be in their company.
[UK](con. 1737–9) W.H. Ainsworth Rookwood (1857) 163: Morts, autem morts, walking morts [...] with all the shades and grades of the Canting Crew, were assembled.
[UK](con. 15C) C. Reade Cloister and Hearth (1864) II 33: Come with me to the ‘rotboss’ there, and I’ll show thee all our folk and their lays [...] ‘Rufflers,’ ‘whipjalks,’ [sic] ‘dommerars,’ ‘glymmerars,’ ‘jarkmen,’ ‘patricos,’ ‘swadders,’ ‘autem morts,’ and ‘walking morts.’.
walking stationer (n.) [ext. of SE walking stationer, a bookseller; cf. early 17C SE standing stationer, one who has a stall in a market]

a hawker of pamphlets, gallows confessions, popular songs and similar materials.

[UK]Grose Classical Dict. of the Vulgar Tongue ms. additions n.p.: Walking Stationer, a Hawsker of Pamphlets.
[UK]Grose Classical Dict. of the Vulgar Tongue (2nd edn).
[UK]J. Freeth ‘Whipcord, or the Walking Stationers’ Political Songster 88: Reuben and Moses, two poor walking stationers.
[UK]Grose Classical Dict. of the Vulgar Tongue (3rd edn).
[UK]Lex. Balatronicum.
[UK]Liverpool Mercury 1 Nov. 7/3: Mr. J. Clarke, formerly [...] walking stationer, copperplate printer [...] but now, alas! [...] printer’s devil!
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[UK]Grantham Jrnl 23 Feb. 4/5: Elizabeth Brown applied for an order in bastardy on Wm. D. Jenning,a ‘walking stationer’.
[UK]London Standard 29 Sept. 4/5: The curious poet, David Love, or ‘the walking stationer,’ could not visit the mighty goose fair of Nottingham without [etc.].
[UK]Sheffield Dly Teleg. 7 Oct. 8/1: I saw a veritable walking stationer’s shop going from door to door vending his wares.
[UK]Notts. Guardian 27 Aug. 11/5: ‘Jacky Turner,’ the walking stationer [...] had no difficulty in selling his papers.
walking train (n.) [its lack of velocity]

(W.I.) a local train.

H.A. Franck Roaming through the W.I. 414: in the island dialect a local train is a ‘walkin’ train’, and all Jamaican trains fall into this category .
walking wounded (n.) [orig. WWI milit.]

(US) anyone who, despite substantial problems in their life, is still able to function.

[US]D. Hecht Skull Session 280: Their parents and brothers and sisters are walking wounded, there’s a hole in their lives.

In exclamations