Green’s Dictionary of Slang

lavvy n.

also lavy
[abbr.]

1. (mainly Scot.) a lavatory.

‘Neville Shute’ What Happened to Corbetts (1968) 113: ‘There’s another in the forecastle, asleep.’ ‘Over the lavvy,’ explained Phyllis.
[Aus]D. Niland Shiralee 10: She [...] locks them in the lavvy when they eat all the cakes.
[UK]B. McGhee Cut and Run (1963) 95: ‘Could ye go a jag?’ he asked [...] ‘C’mon inty the lavvy. Ah’ve a boattle of “scud” here.’.
[UK](con. 1940–50s) Nicholson & Smith Spend, Spend, Spend (1978) 9: Your ‘lavvy’ and your coal house were at the bottom of the yard.
[UK]T. Wilkinson Down and Out 169: My advice is never follow him into the lavvy, the smell would probably kill you.
[Scot]I. Rankin Let It Bleed 144: I’d leave you to squat on the pan and send your career down the lavvy like the night before’s kebab.
[UK]A. Warner Sopranos 213: What? Drowned hisself down the lavvy pan?
[UK]Indep. Rev. 19 Feb. 20: The lavvies should be free of pong.
[Scot]L. McIlvanney All the Colours 68: The stink of shit from the stairhead lavvies.
[Scot](con. 1980s) I. Welsh Skagboys 75: Ah banged up in the lavvy in the Grapes.
[Scot]I. Welsh Dead Man’s Trousers 4: I push past her and tear into the lavy.

2. life.

[UK]R. Milward Man-Eating Typewriter 4: An una-in-a-lavvytime lucrative share.