How do you say barbecue in German?

Answer 1

There is no German word for hot dog. So "a hot dog" is simply "ein Hot Dog" in German.

If by, "hot dog" you are asking how to say that the dog is "hot" (as in temperature), you can say "Er ist Heiss" ("He is hot," where "He" refers to the gender of the noun, der Hund, which is masculine).

Answer 2

Barbeque can, depending on context, be translated as:

Grill - etwas auf dem Grill kochen = cook something on the barbeque

Grillparty - wir gehen zu einer Grillparty = we're going to a barbeque

Answer 3

Wir wollen Bratwurst essen.