A Wisconsin Badgers hoops fan has been banned from buying tickets to the school's sporting events ... after making disgusting slant-eye gestures toward Northwestern students during a game.
The incident happened during Tuesday's matchup at Welsh-Ryan Arena in Illinois ... when a man in Wisconsin colors was recorded on video standing up and taunting the Northwestern student section with the middle finger and anti-Asian gesture.
The fan recording the incident was in complete shock ... as well as the targeted students, who appeared to be of Asian descent.
The man was eventually kicked out of the arena by security .