What is "hadouken"

Hadouken may refer to:

• Hadouken (Street Fighter), a special attack in the Street Fighter video game series
• Hadouken!, a British new rave band formed in 2006
• Hadouken-ing (also known as Makankosappo), an internet meme that began in March 2013
• Hadouken, a taunt in the first-person shooter game Team Fortress 2.