'the way of the dodo'

[Agnes]

What does this sentence mean? "Oh!corporal punishment!! it went the way of the dodo!" I know the dodo is an extinct bird! Which other way can the phrase be used?

[RonBee]

Dodos are extinct. "It went the way of the dodo!" means that the practice is extinct. In other words, according to the speaker, things aren't done that way anymore.

~R