DAD..MOM..TM?

I sent a text to John:

Now I am really confused bout TT clothes.  What does TM mean?

John didn’t respond, but I asked a couple of my friends what they thought.

Their responses:

Tesla’s Mom and Trademark.

Any other thoughts until I can get this explained.  I just don’t follow Heather’s logic.

Total Malarkey,

~P.