The mayhem didn't end in Vegas -- days after Floyd Mayweather locked horns with T.I., Floyd's friend Benzino got kicked off an airplane in Chicago ... and in the process, the "Love & Hip Hop: Atlanta" star unleashed the loudest torrent of f-bombs we've ever heard.
It's all on video -- Benzino (the same guy who was partying with Floyd at the strip club early Sunday morning) goes OFF ... calling a flight attendant "a racist motherf*****" and a "racist bastard."
Eyewitnesses tell TMZ, Benzino was asked to leave the plane during a stopover in Chicago on his flight from Vegas to ATL.
The details surrounding the blowup are hazy -- we're told the flight attendant questioned Benzino about his seat and next thing everyone knew ... Benzino was screaming.
We're told Benzino left the plane without further incident and police were not called to the scene. Calls to Benzino and the airline were not returned.