Ninja Barber is obviously a ninja, who uses his skills to cut hair using a pair of gigantic scissors. SwaySway has probably been to him before, as he says: "Whenever it comes to hair cutting, this guy is the best."
The Ninja Barber's first appearance was in Buhdeuce Goes Berserks. The Chinese words in the background when he debuts translates to "ninja beautician".
- 111b: Buhdeuce Goes Berserks