Is it weird to have mashed potatoes with tacos?

Yes and illegal

after brushing teeth

not at all

Just do whatever oodles your noodles!

In some pales it is compulsory.

Never tried it.

To each his own.

No

a bit thingy but great

Whatever floats your boat....

Yes.

No

Er' well I would'nt have it, but, whatever floats your boat !

Yes, sounds pretty good though

Only if you are on the South Beach diet.

Lol I do that all the time. It's pretty good

Potatoes are good with everything!
You can even season the potatoes with a cajun seasoning and throw them in the taco ;)

Sounds good to me.

It doesn't seem like it would be like drinking orange juice after brushing teeth, so...