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1. verb To perform daring, showy, often dangerous stunts so as to impress other people. (Usually used in the continuous tense; sometimes hyphenated.) Primarily heard in US. He spent the afternoon hot dogging on his jet ski in front of the ladies on the beach.
2. noun A person who performs such daring stunts. Primarily heard in US. There are always a few hot dogs at this park showing off on their skateboards.
3. interjection An exclamation of excitement or pleasant surprise. Primarily heard in US. Hot dog! I can't wait to try out my new motorbike! Our application was approved? Well, hot dog!
A person who performs showy, often dangerous stunts, especially but not exclusively in sports; also, a showoff. For example, He was a shameless hot dog on the tennis court, smashing every ball, or She was a hot dog behind the wheel, screeching her wheels at every turn. The relation of this term to the edible hot dog is unknown. [Colloquial; c. 1900]
2. Also, hot diggety dog; hot diggety. An interjection expressing delight or enthusiasm, as in Hot dog! What a great gift, or Hot diggety! We got the best concert tickets after all. [Slang; c. 1900]
in. to show off. The coach said, “Stop hotdogging and play ball, you guys.”
A showoff, a flashy performer. The term originated in the late 1800s in sports, where it signified an exceptionally skillful athlete, but it soon came to mean a person who showed off his or her abilities in any context. It also gave rise to the verb to hot dog, meaning to show off. Thus, “Brian’s always going to be a hot dog; he just can’t sit back and let others do it.” It should not be confused with the name for a frankfurter, which dates from the same time. “You are a hot shot indeed.” —James Howell, English Proverbs (1659)