neither here nor there

[neither here nor there] {adj. phr.} Not important to the thingbeing discussed; off the subject; not mattering.

Perhaps you didstay up late finishing your homework. That's neither here nor there.You still must come to school on time.

The boys all like the coachbut that's neither here nor there; the question is, "Does he know howto teach football?"

Compare: BESIDE THE POINT. Contrast: HAVE TO DOWITH, COME TO THE POINT.