Green’s Dictionary of Slang

liver n.1

SE in slang uses

In compounds

liver disturber (n.) (also liver-lifter, liver-turner)

(US) a very large penis.

[[UK]Cythera’s Hymnal 43: The dildo for past neglects atoned / And almost lifted her liver].
[US]Stag Party 95: Liberal allowance made for button-hole pricks, commonly called cunt robbers, hair curlers, liver disturbers, kidney wipers, belly ticklers, bowel starters, etc. [Ibid.] 195: He has a liver lifter, child, / With which he ripped their wombs .
Actionable Offenses ‘The Whores’ Union’ (2007) [cylinder recording ENHS 30188] [as cite 1888].
[UK]Farmer & Henley Sl. and Its Analogues.
liver head (n.)

(US) a fool, an incompetent.

[US]H.M. Anderson Strip Tease 43: A straight man, when he’s no good, [...] may be a ‘liver head’...‘he can’t learn nothin’’.
liver-jerker (n.)

a tricycle.

in G. & W. Grossmith Diary of a Nobody (2001) 42: August 17. Carrie and I went for a sail. [...] On our return, [Lupin] said: ‘Oh, you’ve been on the “Shilling Emetic,” have you? You’ll come to six-pennorth on the “Liver Jerker” next.’ I presume he meant a tricycle, but I affected not to understand him.
liver-lips (n.)

see separate entry.

liver-shaker (n.)

a riding hack.

[Fores’s Sporting Notes 15 35: The light four- wheeled dog-cart jolted and jumped over the ruts in a most uncomfortable way, and the passengers were being treated to a genuine ‘liver-shaker,’ which might be ‘good for them,’ but which was most decidedly unpleasant to feel].
[UK]‘Sapper’ Michael Cassidy 105: A Staff officer hacked by on a rustic morning liver-shaker.
[Scot]Dundee Courier 27 Apr. 8/1: Much motoring means a sluggish liver [...] the middle-aged men who take a liver-shaker in the ridinng school [...] grow more numerous.
liver-string (n.) (also liver-pin)

(W.I., Guyn.) a notional source of one’s energy; thus work out one’s liver-string, to exhaust oneself through hard labour.

[US]L.C. Curtiss ‘Disjecta Membra’ in Dialect Notes III vi 458: to burst the liver-strings, or to strain the liver-pin, v. phr. Said of some violent exertion, as ‘If you laugh so hard you’ll burst your liver-strings’.

In phrases

scare the liver(s) (and lights) out of (v.)

to terrify.

[US](con. c.1840) ‘Mark Twain’ Huckleberry Finn 259: It most scared the livers and lights out of me.
[US]J. Lait ‘One Touch of Art’ in Beef, Iron and Wine (1917) 218: Gee! you scared the liver outta me. My mitt trembled till I couldn’t pull de trigger.
[US](con. 1900) L. Riggs Green Grow the Lilacs I iii: Who’s been a-shootin’? Skeer the liver and lights out of a feller!
[Aus](con. 1936–46) K.S. Prichard Winged Seeds (1984) 234: ‘Scared the liver and lights out of her,’ he chuckled.