1856. Notes & Queries, 2 S. i. 283. s.v.
Mix, subs. (colloquial).—A muddle; a mess.
1882. W. D. Howells, A Likely Story iii. What a fatal, fatal mix.
Verb. (colloquial).—1. To confuse; and (2) to involve or implicate.
Also to mix up (see quot. 1823).
1823. Bee, Dict. Turf, s.v. Mix it up—to agree secretly how the
parties shall make up a tale, or colour a transaction in order to
cheat or deceive another party, as in case of a justice-hearing, of
a law-suit, or a cross in a boxing-match for money.
1879. E. Dicey, Victor Emanuel, p. 53. An Italian exile, who in his
hot youth had been mixed up, very much against the grain, in an
abortive plot for the assassination of the late king.
To mix (or join) giblets. See quots.
1823. Grose, Vulg. Tongue, s.v. Giblets.
1823. Bee, Dict. Turf, s.v. Mix giblets—to intermarry—naturally or
legally.
1887. Notes and Queries, 7 S. iv. 511. To join giblets. This
expression may occasionally be heard ... and has a very offensive
meaning.
Mixed, adj. (colloquial).—1. Confused; muddled; bewildered.
1880. Punch, 4 Sept., 106. ‘Tomkins’s First Session.’ Rather mixed
after twenty-one hours’ continuous sitting.