Bdugan is a term used to describe a certain hand movement that is often used in dancing or in party games. It was invented at the University of New South Wales' residential college New College in the Suburb Kensington, which is in the east of the city of Sydney, Australia. It has since become a very popular move amongst young males at the university, and has achieved somewhat legendary status in some Sydney nightclubs, who's bar staff instantly know if a patron comes from a UNSW college simply by witnessing the performance of this single dance move.

The move consists of holding both hands close to the body, then pushing them forward in a violent manner with one hand over the other, wrists touching and the palms facing forward, and yelling 'Bduuuugan' at the same time. It was originally the third move in a party game "sa-boonsa", which is a rhythm based game of elimination. However, it was adapted and It works well in a dancing context as en emphasis move for important beats in the music.

The cry that goes with the move was named after notable New College resident Ben Dugan, who was a well known figure throughout the University due to his involvement in many political and social activities on campus. It is not known if the move was named after him in jest, ridicule or honour, but it is wideley accepted that he is the person for whom the move was named.

The origin of the physical move itself is not clear. Many have compared it to the fireball move performed by several characters from the famous arcade game Street Fighter II. In the game, characters make the same movement as the Bdugan and yell "Hadoken" as a fireball shoots out of their hands. The similar movement and sound do support this theory, but it is not proven. Some older UNSW and New College alumni claim to remember the move being performed years before the Street Fighter II game existed, but those that claim it were not actually at UNSW at the time.