Green’s Dictionary of Slang

lay-up n.

[lay up v.]

1. a drink of alcohol.

[UK]J. Newman Scamping Tricks 84: I would have given just then some one else’s gold-mines for a strong lay-up of something neat [F&H].

2. a term in jail.

[UK]‘George Orwell’ Down and Out in Complete Works I (1986) 190: It seemed his whole life was this — a round of mooching, drunks and lay-ups.

3. (UK Und.) a hideout.

[UK]V. Davis Phenomena in Crime 33: A gentleman having the ‘open Sesame’ key to all the underworld ‘lay ups’.

4. (US campus) something easy.

[US]Eble Campus Sl. Apr.