By TMZ Sports
Eight division world champion Manny Pacquiao is a "f***ing idiot" -- so says "Guardians of the Galaxy" star Dave Bautista ... who says he's EXTREMELY offended by the boxer's anti-gay comments because his mom's gay.
A few days ago in the Philippines, Pacquiao spoke out against same sex marriages. He compared homosexuals to animals, which resulted in a huge backlash and clothing giant Nike cutting their business ties with the boxer.
The former WWE superstar -- who also happens to be Filipino -- went off on Pacman at LAX Airport in Los Angeles.
"My mom happens to be a lesbian so I don't f***ing take that sh*t. I don't think it's funny."
"If anyone called my mother an animal I'd stick my foot in his ass."
Bautista says he still respects Manny as a fighter -- "but as far as his opinions, stick that up your ass."
The wrestler turned actor is a big supporter of boxing and Filipino fighters. He was often seen supporting Nonito Donaire. Back in 2009, Bautista walked Pacquiao down to the ring for his HBO Pay-Per-View bout with Ricky Hatton.