The Dairy Queen blunder

We went to Dairy Queen for a fat boy moment

Them: Welcome to Dairy Queen, can I take your order?

Me: I’d like a medium Blizzard with brownies and a large Blizzard with cookie dough and Reeses penises

Them: Um…

Me: (Amidst laughter) I mean pieces, sorry.

Of course the large was for me, but I would have felt better if I had said it as a joke instead of just misspeaking