The floppy disk is an invention that is now as dead as a dodo.
Examples of 'dead as a dodo' in a sentence
dead as a dodo
We may well be able to revive animals that are as dead as a dodo.
Times, Sunday Times (2015)
These are not the full-on, dead-as-a-dodo, brown, oxidised bottles most drinkers would be able to spot instantly, but a paler, less palpable variation.
Times, Sunday Times (2008)
These places are stiff, stultified and obsessed with social stratification; the atmosphere is as dead as a dodo.
Times, Sunday Times (2007)
It is as dead as a dodo, with liabilities way in excess of the supposed 'assets'.