adj. (old).Drunk.
1639. FULLER, Holy War, bk. III., ch. xvi. The spring-tide of their mirth so drowned their souls that the Turks coming in upon them cut every one of their throats, to the number of twenty thousand, and quickly they were stabbed with the sword that were CUP-SHOT before.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue, s.v.