Green’s Dictionary of Slang

rump n.

[SE rump, the buttocks]

1. a prostitute.

[UK]J. Day Blind Beggar of Bednall-Green Act IV: You shall likewise see the amorous conceits and Love songs betwixt Captain Pod of Py-corner, and Mrs. Rump of Ram-alley.
‘Aretine’ Strange and True Newes 3: Ordered that clean smocks be in request and alwayes ready though the Rump be rotten, and that no one scruple the giving the Pox.
[UK]M. Stevenson Wits Paraphras’d 86: Full dear I long’d to be a Bitching — / Of some young Rump I wish thy Maw full / That thou mayst pray on food that’s lawfull.
[UK]Farmer & Henley Sl. and Its Analogues.

2. sexual intercourse.

[US]B. Hamper Rivethead (1992) 105: Some droolin’ psychopath who ain’t had any rump since LBJ croaked.

SE in slang uses

In compounds

rump ranger (n.) (also rump wrangler)

a male homosexual.

[US] P. Munro Sl. U.
Zane Heat Seekers 🌐 There I was infatuated with what I thought was a prime candidate for The Pussy Eater’s Hall of Fame when all along I was giving all my sweet loving to a booty bandit, a rump wrangler, a sword swallower. No wonder he knew how to eat a pussy so damn good.
[US]J. Ellroy ‘Hollywood Fuck Pad’ in Destination: Morgue! (2004) 212: The hills magnetized fruits. [...] Rump rangers rutted in parked cars.
[US]J. Ellroy Widespread Panic 72: Dole out the dish on Rump Ranger Rock [Hudson].
rump-rider (n.)

a male homosexual.

[UK]Holloway (printer) Vere Street Coterie 47: It is said that the ghost of White, the drummer boy, lately executed for Sodomy, pays his nocturnal visits to old Moggy, the rump-rider, Park-street.
rump shaker (n.)

(US) an act of sexual intercourse.

[US]Alt. Eng. Dict. 🌐 rump-shaker (noun) the act of sexual intercourse.
[US]‘Touré’ Portable Promised Land (ms.) 156: We Words (My Favorite Things) [...] Hotstepper. Crumbsnatcher. Rumpshaker.
rump-splitter (n.) (also splitter)

1. the penis.

[UK]Urquhart (trans.) Gargantua and Pantagruel (1927) I Bk I 44: And some of the other women would give these names [...] my lusty live sausage, my crimson chitterlin, rump-splitter, shove-devil, down right to it, stiff and stout, in and to, at her again, my coney-borrow-ferret, wily-beguiley, my pretty rogue.
[US]D. St John Memoirs of Madge Buford 55: ‘It’s a splitter! [...] Oh, he’s swelling! I’m coming! Squeeze his balls’.

2. a lecher, a womanizer.

[UK]Farmer & Henley Sl. and Its Analogues.

In phrases

not know one’s rump from a hole in the ground

to be stupid.

[US]J.T. Farrell World I Never Made 123: Jesus, Dan, you don’t know your rump from a hole in the ground, do you?
rump and a dozen (n.)

see separate entry.

rump-and-kidney men (n.)

see separate entry.