Jack Daniels. In a 1-oz. serving of Jack Daniels whiskey, which equates to a little less than a full shot at a respectable bar, contains about 69 calories. While that may not seem like a lot, after a couple of these bad boys mixed with cola, you've racked up quite a few calories. Jose Cuervo.
Medical Definition of black widow. : a venomous New World spider of the genus Latrodectus (L. mactans) the female of which is black with an hourglass-shaped red mark on the underside of the abdomen; broadly : any other spider of the genus Latrodectus.
Natasha Romanoff / Black Widow. Former KGB agent Natasha Romanova, known as Black Widow, is one of the greatest spies ever to live and is one of the best agents S.H.I.E.L.D. has ever had. She's a longtime member of the Avengers and was a founding member of the short-lived Los Angeles-based superteam: The Champions.