Green’s Dictionary of Slang

clout v.1

also clart
[clout n.2 (1); earlier use was SE]

1. to hit, to give heavy blows to; thus clouting, a beating.

[UK]J. Heywood Witty and Witless in Farmer (1905) 194: Some cuff, some clout him.
[UK]Beaumont & Fletcher Coxcomb II ii: I’ll clout thy old bald brain-pan.
[UK]Fletcher Women Pleased II vi: Pay him o’th pate, clout him for all his curtesies.
[UK]R. Speed Counter Scuffle A2: Full nimbly could he cuffe and clout.
[UK]Sheffield Indep. 6 Nov. n.p.: Brammall threatened to clout Hinchcliffe. Hinchcliffe [...] saying, if Brammall did not hold his noise, he would give him a clouting.
[UK](con. 1840s–50s) H. Mayhew London Labour and London Poor II 224/2: But I was starved back in a week, and got a h-- of a clouting.
[UK]R.D. Blackmore Lorna Doone (1923) 32: A big boy clouted them on the head.
[Ire]C.J. Kickham Knocknagow 94: ‘The heaviest cloutin’ match’ – to use his own phrase – he ever had, was with young Allcock for refusing to marry his sister.
[UK]E. Pugh Street in Suburbia 55: When he lost his temper and clouted us we were never quite sure which side of our head we would fall on till we fell on it.
[US]Number 1500 Life In Sing Sing 247: Clouting. Assaulting.
[US]H. Green Maison De Shine 97: When mommer gits him upstairs she’ll clout him, won’t you mommer?
Jackson Dly News (MS) 1 Apr. 7/1: Crook Chatter [...] ‘[T]he leather lifting game is not what it used to be. It’s easier to “case a joint” now, “clout a boat,” stick up the place and make a getaway’.
[UK]Marvel 3 Mar. 7: You must have been mad when you clouted the kid.
[UK]‘Henry Green’ Living (1978) 338: Most likely she had not had dinner ready for them because she had been wild with her father at his clouting her.
[US]D. Runyon ‘A Job for the Macarone’ in Runyon on Broadway (1954) 692: He is thinking of clouting us around some.
[US]I. Shulman Amboy Dukes 35: I’ll clout you again, you goon.
[UK]Galton & Simpson Hancock’s Half Hour May [radio script] Mum, there’s that bloke who’s goin’ to clout me.
[UK]A. Sillitoe ‘The Match’ Loneliness of the Long-Distance Runner (1960) 116: He had been up before the gaffer [...] for clouting the mash-lad who had called him Cock-eye in front of the office girl.
[UK]E. Bond Saved Scene vi: It’s tryin’ a clout ’im.
[UK]A. Ayckbourn Ten Times Table II i: donald: Who exactly are the enemy, Captain? How will one know them? tim: Anyone wearing a jerkin, clout him.
[UK]J. Morton Lowspeak.
[Ire]F. Mac Anna Last of the High Kings 56: Then he clouted him across the face with an open palm.

2. (UK Black/gang) to assault, to stab.

Harlem Spartans ‘Kennington Where It Started’ 🎵 Dip, dip, Prince have him dancing / [...] /SA or Sav get out there and clart him.

In compounds

clout-head (n.)

a thug, a ruffian.

[US]L. Bing Do or Die (1992) 359: When society starts to use force [...] it lowers itself to the level of the goons, the yobs and the clout-heads.

In phrases