hot dog

Concise Oxford English Dictionary © 2008 Oxford University Press:
hot dog

▶noun

• 1 a hot sausage served in a long, soft roll.

• 2 N. Amer. informal a person, especially a skier or surfer, who performs stunts.

▶exclamation N. Amer. informal expressing enthusiastic approval. ▶verb (hotdog) (hotdogs, hotdogging, hotdogged) N. Amer. informal perform stunts.

– derivatives
hotdogger noun.