Green’s Dictionary of Slang

cuff v.1

[SE cuff, to strike with the fist; note Rötwelsch (Ger. rogues’ cant) kuffen, to thrash]

1. (US black) to hit, to fight.

[US]A.H. Lewis Wolfville 113: She takes it out in cuffin’ the yearlin’s now an’ then, jest to keep ’em yellin’.
[US]H.C. Witwer Fighting Blood 366: I won’t cuff you because I’m sorry for you.
[Ire](con. 1880–90s) S. O’Casey I Knock at the Door 229: A few Fenian faces in the crowd among the Irish [...] were soon collared by the police, an’ cuffed out of the vicinity.
[US]A. Hynd We Are the Public Enemies 95: Now he began to cuff Beuloah Baird around, just, for the hell of it.
[US]W.R. Burnett Little Men, Big World 65: She’s figuring she’ll do something wrong without knowing it and you’ll cuff her around.
[Aus]D. Maitland Breaking Out 290: Dickie King stepped forward and cuffed Willie right across the left ear.
[US]E. Folb Runnin’ Down Some Lines 104: The largest number of fight terms deals with fist-fights (to [...] thump, to cuff).

2. to defeat (in a competition).

[UK]I. Welsh Glue 51: The whistle goes again, n it’s over, we’ve cuffed them.

SE in slang uses

In phrases

cuff Jonas (v.) (also knock Anthony) [SE cuff, to strike + generic use of Anthony/Jonas, a person, oneself]

1. of one’s knees, to knock together.

[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: To knock Anthony, said of a inkneed person, or one whose knees knock together n.p.: To cuff Jonas, said of one who is knock kneed, or who beats his sides to keep himself warm in frosty weather.
[UK]Grose Classical Dict. of the Vulgar Tongue (3rd edn).
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.

2. to strike the hands under the armpits to warm them.

see sense 1.