Green’s Dictionary of Slang

blue adj.2

[? ‘blue in the face’; the ref. to ‘a razor’ (cites c.1786, 1821, 1826) presumably = ‘blue steel’]

1. [early 19C+] (US/Aus., also blue as a razor, blue drunk) drunk; thus blue willies, delirium tremens [appears in the early 19C US, lasts until the mid-century then re-emerges in Australia by the early 20C].

2. [1940s+] (S.Afr.) under the influence of marijuana.

In compounds

blue-blind (paralytic) (adj.) [blind adj.1 (1)]

[1900s–10s] (Aus.) extremely drunk.

blue-eyed (adj.)

see separate entry.