Green’s Dictionary of Slang

lovely, sweet, excellent.

1993		I. Welsh Trainspotting 123: Na Na hates it thair, even though she’s likes, goat a barry pad.
2001		OnLine Dict. of Playground Sl. 🌐 barry n. (1) good, great, fantastic, as in ‘That film was real barry!’ Edinburgh slang for ‘great’; ‘fantastic’.
2012		(con. 1980s) I. Welsh Skagboys 43: That’s Les. Barry gadgie, but [...] nae Oscar Wilde.
2018		I. Welsh Dead Man’s Trousers 69: But tae be wanted again, for anything, it feels barry.