I. ˈhät-ˌdȯg noun
Date: 1895
1. : frankfurter ; especially : a frankfurter heated and served in a long split roll
2.
[perhaps from hot dog (II)]
: one that hotdogs ; also : show-off
II. ˈhät-ˈdȯg interjection
Date: circa 1906
— used to express approval or gratification