Green’s Dictionary of Slang

1. urine; thus piddly adj., redolent of urine.

1870		Cythera’s Hymnal 77: He can’t go to piss, / But the spunk with the piddle comes bubbling.
1937–84		Partridge DSUE.
1951		(con. 1880s) S. Longstreet Pedlocks (1971) 100: Joseph held up the thin blue bottle of Mount Carmel wine. ‘Sweet wine for a Buba Yente. Whoever saw such a sweet wine, this rabbi’s piddle?’.
1963		C. Wood ‘Prisoner and Escort’ in Cockade (1965) I iii: Is that what he is? I thought he was a piddle on the carpet.
1967		J. Wynnum I’m a Jack, All Right 117: You’d get squirted in the eye with piddle, that’s what.
1976		A. Bleasdale It’s a Madhouse (1986) 121: Coming back from Southport. Maria’s piddle runnin’ right down the bus.
1985		B. Humphries Traveller’s Tool 34: Place the carrier bag beside you in a nice big pool of piddle.
1990		T. Winton Human Torpedo 7: He helped Phillip out of his piddly PJs.
2015		L. McInerney Glorious Heresies 41: [P]iddle dribbling down your trouser leg.

2. an act of urination.

1841		‘Don Giovanni or, The Man Vot Claps ’Em On The Peg’ in Gentleman’s Spicey Songster 28: And under her window he went to trepan her, / With his weedle tweedle, while at piddle.
1888–94		‘Walter’ My Secret Life (1966) III 518: A few tears, then a fuck, a piddle, a wash.
1959		A. Sinclair Breaking of Bumbo (1961) 116: We’re not fighting against it, for any bleeding piddle of salt water, or any bleeding British Government that goes off its bloody rocker.
1960		J.R. Ackerley We Think The World Of You (1971) 143: I’d ’ave took ’er out first thing in the morning for ’er piddles.
1971		F.J. Hardy Outcasts of Foolgarah (1975) 34: ‘I want to go for a Gerry Riddle and an Edgar Britt.’ [...] ‘A what?’ ‘A piddle and a shit.’.
1976		(con. 1930s) J. Wolveridge Ain’t it Grand 40: The few expressions still in use such as [...] a Jimmy Riddle for a piddle.
1983		J. Byrell (con. 1959) Up the Cross 24: An undisturbed piddle on the good old El Alamein.
1991		R. Doyle Van (1998) 580: I’m dyin’ for a piddle.

3. nonsense.

1970

L. Bangs in Psychotic Reactions (1988) 35: Fat buckskinned Leslie West [...] reacted to Pappalardi’s piddle with broad, joyously agonized mugging.

4. weak beer.

1980

M. Bail Homesickness (1999) 80: Garry Atlas ordered another round, and cold ones, not that warm piddle.