A hot dog is one of the most popular American foods. It was, named after Frankfimer, a German food. You may hear “hot dog” used in other ways. People sometimes say “hot dog” to express （ 1 ） For example, a friend may ask （ 2 ） you would like to go to the cinema. You might say, “Great! I would love to go.” Or, you could say,“ Hot dog! I would love to go.” People （ 3 ） use the expression to describe someone who is a “show-off”, who tries to show everyone else how great he is. You often hear such （ 4 ） called a “hot dog”. He may be a baseball player for example, who catches the ball with one hand, making a(n) （ 5 ） catch seem more difficult. You know he is a hot dog because when he makes such a catch, he bows to the crowd, hoping to win their cheers.