Cognate with German Schluck (“a draught; a gulp”), Dutch slok (“a draught; a gulp”).
Meanings
(Northern-England, Scotland) A draught; a gulp.
A slock of wine.
Nothing like a slock of cake on a chilly evening, is there? 1935, Howard Lindsay, She Loves Me Not: A Comedy in Two Acts: Dramatized from Edward Hope’s Novel, French’s standard library edition, New York, N.Y.; Los Angeles, Calif.: Samuel French, Inc., →OCLC, act I, scene II.B, page 15:
(West-Country, obsolete, slang, transitive) To poach (a servant) from another household.
(Cornwall, transitive) To entice.
We were slocked there ourselves, an' we should ha' ben kidnapp'd too, ef it hadn ben for that young wumman. 1862, William Bentinck Forfar, Pengersick Castle: a Cornish Tale, page 82:
A boy who is tempted to play truant by another, will say that he has been "slocked" into his misbehaviour. 1884, Edward Walford, George Latimer Apperson, The Antiquary (volume 9, page 220)