(A parade of words and phrases eligible for retirement.)
Scuttling Door Nails
“It was dead as a door nail”—that’s such an odd phrase
And we’re not really sure what it means.
Now it’s meaning is lost and we’re puzzled, I know—
As we are by the slang of our teens.
And so what do you say? Should we scuttle the thing?
(And, yes, scuttle’s another that’s died.)
Or just calmly accept that some things will confuse
When the past and the present collide?
 a large-headed nail formerly used for strengthening or ornamenting doors.
 to sink (a vessel) deliberately by opening seacocks or making openings in the bottom; 1490-1500; perhaps ≪ Spanish escotilla hatchway, equivalent to escot (e) a cutting of cloth (< Gothic skaut seam; akin to sheet1) + -illa diminutive suffix