subs. phr. (old).A horse with two women riding sidewise.
Adj. (colloquial).Very; completely: usually in combination: thus STOCK-STILL = entirely at rest; STOCK-BLIND = absolutely sightless, &c.: cf. STONE.
1675. WYCHERLEY, The Country Wife, ii. 1. True lovers are blind, STOCK-BLIND.
1759. STERNE, Tristram Shandy, i. 22. If he begins a digression from that moment, I observe, his whole work stands STOCK-STILL.
1809. MALKIN, Gil Blas [ROUTLEDGE], 91. I stood STOCK-STILL in the street, not a little stiffened at this vision.