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!