Green’s Dictionary of Slang

scuttered adj.

[dial. scutter, to expend a great deal of energy in doing nothing constructive + Irish sciotarálaí, idle chatter]

(Irish) tipsy, drunkenly loquacious; note mis-defined as a n. in cit. 2001.

[Ire]P. Boyle At Night All Cats Are Grey 243: It’s my belief, Missus, that the bowsie in that car was rightly scuttered.
[Ire]R. Doyle Snapper 205: Jesus, I’m scuttered.
[Ire]G. Coughlan Everyday Eng. and Sl. 🌐 Scuttered (n): drunk.