Green’s Dictionary of Slang

slab n.

1. [early 19C–1900s] a milestone.

2. [mid-19C–1930s] a tough(-looking) person or creature [SAusE slab, ‘a coarse, axe-hewn plank, two or three inches in thickness’ (OED)].

3. [late 19C+] a sandwich or bread.

4. [1900s] (US Und.) a shop display tray.

5. (US) a restaurant.

6. [1920s+] (US) a stretcher, an undertaker’s table.

7. [1930s–40s] (US) a small town.

8. [1930s+] (US black) a bed.

9. [1960s] (US) a highway.

10. [1970s+] (US black) $1.

11. [1980s+] in drug uses.

(a) weak or impure crack cocaine [? SE (mortuary) slab, i.e. it is ‘dead’].

(b) a large piece of crack cocaine, the approximate dimensions of a piece of chewing gum.

12. [1990s+] (Aus.) a case of 24 bottles or tins of beer.

13. [1990s+] (US black) an automobile.

14. [2010s] (UK black) a block of flats.

In compounds

slab-dabber (n.)

see separate entry.

slab-sides (n.)

[mid-19C-1910s] (US) a large, stupid person; thus slab-sided adj.

In phrases

put on a slab (v.)

[20C+] (US prison) to fight in private to settle a score.

whip the slab (v.)

[2000s] to sell crack cocaine.