Mahwah, New Jersey Puns

My family was taking our grandmother back to a town in New Jersey. On the way there we were discussing how we were getting there, and our grandmother remembers a town we have to pass through on the way there. The town is called Mahwah.

So she says, "Does this road go to Mahwah.

To which my dad replies, "It sure does, but it also went today and yesterday".

If you don't get it, try reading it out loud.