Green’s Dictionary of Slang

calf n.1

also veal
[dial.; note the UK comedian Steve Coogan’s 1990s character Paul Calf, a loutish, stupid, hedonistic Mancunian]

[mid-16C–1920s] a fool, a simpleton.

In derivatives

calfy (adj.)

[1900s] foolish.

In compounds

calf-lolly (n.) [dial. lolly, a fool, an idler]

[mid–late 17C] an idle simpleton.

calf’s head (n.)

1. [early 16C–early 19C] (also calves foot head) a fool.

2. [19C] a white-faced man with a large head.

calf-sticking (n.) [stick v. (2a)]

[mid-19C–1910s] (UK Und.) pretending that perfectly normal goods have supposedly been stolen; a greater price can thus be asked, since some customers like the idea of obtaining stolen goods.

In phrases

have a calf (v.)

[1970s] (US) to lose control, to have an emotional fit.

SE in slang uses

In compounds

calf-slobber (n.) [dial. calf-slobber, the saliva that forms around a calf’s mouth]

1. [1920s+] (US) a meringue topping for pastry.

2. [2000s] foam on a glass of beer.

calf week (n.) (also bull-week, cow-week) [the cattle names imply stolid labouring]

[mid-19C] the three weeks immediately before a holiday period, usu. Christmas, characterized in shops and factories by an increasingly heavy workload and concomitantly higher pay; note cite 1906 for specific naming.