Green’s Dictionary of Slang

1. an unpleasant person.

1583		P. Stubbes Anatomie of Abuses 69: All which are now in most places taken from them by these greedye Puttockes, to the great impouerishing and vtter beggering of whole towns and parishes.
1605		Hist. of the Tryall of Chevalry II i: Peter, dost see this sword? [...] Whorson puttock, no garbage serve you but this? have at you.
1611		Middleton & Dekker Roaring Girle V i: Was it your Meg of Westminster’s courage, that rescued me from the Poultry puttocks indeed?
1631		Chapman Cæsar and Pompey I i: And such a flocke of Puttocks follow Cæsar.
1655		Gossips Braule 7: I faith Puttock, ile blaze your coat ile warrant you.
1867		W.H. Smyth Sailor’s Word-Bk (1991) 551: Puttock. A cormorant; a ravenous fellow.

2. a prostitute.

1984

Partridge DSUE (8th edn) 943/1: C.16–20.