ああ えばこう
āieba kōyū

Godan Verb (u)
Idiomatic Expression

1. to have a comeback for every remark; to be always ready with excuses; to contradict everything

ああ えば、こう う。まったく、口 くち らない やつだ。
āieba kō iu. mattaku kuchiga heranai yakko. da
Whatever I say, he has a comeback ready. You can't get a word in edgewise.