Green’s Dictionary of Slang

1. a prostitute, a promiscuous woman.

1513		G. Douglas Eneados ‘Prologe’ Bk IV (1553) lxxiiii: Thou auld basard, leichhoure fy for schame [...] in sluggardy Out on the old trat, agit wyffe or dame.
c.1538		Thersytes (1550) C ii: Thou olde trotte, seyest thou any man come this waye well armed and weaponed and readye to fighte?
c.1550		C. Bansley Pryde and Abuse of Women line 45: Sponge up youre vysage, olde bounsynge trotte, And trick it with the beste, Tyll you tricke and trotte youre selfe To the devyls trounsynge neste.
1573		‘Cambridg Libell’ in May & Bryson Verse Libel 337: The drvyling Droile, the Dyer’s draff, / A trott for droncken donne.
1593		T. Churchyard Challenge (1593) 250: Away young Frie, that giues leawd Counsell nowe, Awaie old trotts, that sets young flesh to sale.
1621		Rowley, Dekker & Ford Witch of Edmonton IV i: omn.: Are you come, you old Trot? o. bank.: You hot Whore, must we fetch you with fire in your tail?
1628		R. Speed Counter-Rat F2: [An Old gray Rat] Penny pots Of Sacke, which fall to him by lots, Payd him at weekes end by th’ old Trots, For shillings Each Monday lent them.
1669		R. L’Estrange Fables of Abstemius (1692) CCLXIII 237: How now Bold-Face, crys an Old Trot.
1675		Character of a Town Miss in C. Hindley Old Bk Collector’s Misc. 7: An Old Trot, that understands the Town, and goes between Party and Party, and a French Merchant to supply her with Dildo’s.
1685–88		‘A New Dialogue’ in Ebsworth Bagford Ballads (1878) I 70: A fulsome Trot, and good for naught, / unless it be for that.
1725		View of London & Westminster (2nd part) 51: [in a list of prostitutes] Miss Trot [Is Visited] By a Colonel of the Army.
1733		Laugh and Be Fat 132: Damn Whores, I’d not give Three-pence for a T--t.
1948		J.G. Cozzens Guard of Honor 509: ‘Damndest thing I ever heard of. Lying down you’re a trot; that’s evil; that’s what bad girls do for money. Standing up, that won’t count; our heroes, that’s in aid of; that’s for free’.

2. the vagina.

1984

Partridge DSUE (8th edn) 1267/2: C.18–20.

3. a fellow; esp. as old trot.

[1577		Misogonus in Farmer (1906) III ii: He will not deny it again, his arse shall surely quake; It will make the old trot believe his skin I will flay].
1764		K. O’Hara Midas I iv: Odsfish! th’old Trot is, more than usual, testy.
1984		Partridge DSUE (8th edn) 1266/2: from ca. 1919.

4. (N.Z.) a woman.

1838		W. Holloway Dict. of Provincialisms 178/1: Trot, A contemptuous name for an infirm old woman.
1988		(ref. to 1920s) McGill Dict. of Kiwi Sl. 115/1: trot a woman, perhaps desired [...] c.1925.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].

5. see trots n. (1)