hot dog 
noun
1A frankfurter, especially one served hot in a long, soft roll and topped with various condiments.The essence of baseball food is a bun-wrapped wiener - be it hot dog, bratwurst or sausage....
- On Sundays, the bar opens its kitchen, serving burgers, hot dogs, and pizza.
- Fresh meat is lower in sodium than luncheon meat, bacon, hot dogs, sausage and ham.
2North American informal A person, especially a skier or surfer, who performs stunts or tricks: macho hot dogs who take too many risks...
- The viewers in my house were all worried about redneck/macho reactions among competitors when Kobayashi first won the hot dog round and then went on to win the grand prize.
- And with spectacular past performances in hot dog waves as a guide - talent wise - Tim has what it takes to go wire-to-wire.
exclamation North American informal
Used to express delight or enthusiastic approval: Hot dog! I’ve finally found something I can do that you can’t
verb (hotdogs, hotdogging, hotdogged) (hotdog) [no object] North American informal
Perform stunts or tricks: he chastised the dancers who’d been hotdogging
Derivatives
hotdogger
- The hotdoggers also got 40 hours of training on the Wienermobile under the supervision of the Madison police.
- Her brother, Josh De Los Reyes - a former hotdogger and labor and industrial relations graduate student - arranged for the famous frankfurter to surprise her outside the Union on Tuesday.
- The hotdoggers traditionally give out whistles shaped like the Wienermobile; the first was distributed in 1951.
Origin
Late 19th century: originally US college slang, probably influenced by a popular belief that the sausages contained dog meat.