kippered adjective2 •Stiff and lacking vitality; stale.At first I thought perhaps my students were writing this kind of kippered prose because they were attempting scenes and subjects that they knew nothing about. — 1963 •Worn out; tired.Cigar clenched between his knuckles, Johnnie Whiteside patted Gordon's knee. 'How d'you feel, old spud?' 'Slightly kippered,' Gordon answered. 'Not too kippered?' said Eric. — 2012 formsmore kippered · most kippered