Green’s Dictionary of Slang

thick adv.

1. heavily.

[UK]Sidney Arcadia III (1912) 433: He began to deal some blowes, and his arme (being used to flaile in his youth) laid them on so thick, that Clinias now began with lamentable eies to see his owne blood.
[UK]Beaumont & Fletcher Love’s Cure I i: All arm’d, advanc’d within shot of their Walls, From whence the Musquetiers plaid thick upon him.
[UK]Cibber Refusal 16: I rais’d my Fortune, Sir, as Milo lifted the Bull, by sticking to it every day [...] I sous’d them with Premiums, Child, and laid them on thick when the Stock was low.
[UK]Westmorland Gaz. 27 Apr. 4/5: Coachee [...] you needn’t be afeard of laying it [i.e. a fare] on pretty thick.
[UK]D. Boucicault London Assurance in London Assurance and other Victorian Comedies (2001) Act V: I am always thick on the winning horse.
[UK]J. Greenwood Behind A Bus 151: It was a dead certainty, as I told you, and I went in for it thick.

2. intensely, severely.

[UK]W.A. Miles Poverty, Mendicity and Crime; Report 108: Bill, the parson has been laying it into you pretty thick, I think.
[UK]E. Howard Jack Ashore III 273: It does my poor broken heart good to hear ye cuss that sodger – go it again, my daffydown-dilly, and lay it on thick.
[US]W.T. Call Josh Hayseed in N.Y. 117: You’re pilin’ it on too thick.
[UK]Derby Mercury 9 Jan. 8/3: Costy, I've got it a bit thick, suppose I give him a bit of a chivy and see how he likes it.
[UK]Marvel 15 May 3: He was talking pretty thick of what he would do if he met one of them.
[UK]Marvel III:58 19: You know how the cops are thick on our track.
[UK]A. Lunn Harrovians 23: He had an uncomfortable feeling that Mr. Pycroft was piling it on rather thick.
[Ire]Joyce Ulysses 79: Still, having eunuchs in their choir that was coming it a bit thick.
[US]Kerouac letter in Charters I (1995) 62: This, of course, is pouring it on thick, but I wanted to see his reaction.
[US]‘Master Pimp’ Pimp’s Rap 6: I had spotted a dark brown skin sexy sister who was putting it on thick.
[US](con. 1973) C. Stella Johnny Porno 188: They put the hammer to her. ‘Turn informant or get used to munching muff the next dozen years’ [...] They laid it on thick.

3. densely.

[US](con. 1910s) J.T. Farrell Young Lonigan in Studs Lonigan (1936) 67: He couldn’t spread the bull on thick.

4. intimately.

[UK]R.W. Emerson Signor Lippo 91: She looked for all the world like a gippo, and she knew all the cant, and used to palarie thick to the slaveys.
[UK]Boy’s Own Paper 25 May 531: You were in mighty thick with Cockle.
[US]G.V. Higgins Digger’s Game (1981) 13: He’s in pretty thick with Bishop Hurley there.