Miller is just playing word games.
Utter horse manure. Miller is pointing out that by BEHE'S OWN DEFINITION of "irreducible complexity", the flagellum DOES NOT QUALIFY.
Period.
That's not a "word game", that's demonstrating that Behe's "example" of IC doesn't Behe's claim for it.
You forget. You are dealing with an ID/creationist argument. All definitions are subject to change when that change is needed to preserve the argument.