Green’s Dictionary of Slang

away adj.

1. [late 19C+] in prison; (London) in any prison outside London.

2. [1960s+] emotionally satisfied, usu. when intoxicated with drugs or drink.

3. [2000s] successful, as in a seduction.

In phrases

go away (v.)

1. [20C+] to go to jail.

2. [1910s] to be executed.

SE in slang uses

In phrases

away from home (adj.) [sports imagery]

[1990s+] of a relationship, usu. sexual, illicit, adulterous.

away to the hills (adj.)

[20C+] (Irish) mentally unbalanced.

away (with the fairies) (adj.) (also away with it) [fig. uses of SE] [20C+] (orig. Irish)

1. mentally unbalanced.

2. out of this world.

do away (v.)

[early 19C] (UK Und.) to work as a receiver.

get someone away (v.)

[late 19C] (Aus. Und.) to trick, to hoax.

In exclamations

away to fuck! (also away to hell!)

[20C+] a general dismissive excl., usu. Scot./Irish.