The 28-year-old champ is seriously pissed off at Floyd -- and Manny Pacquiao -- calling them both out for refusing to fight him in the ring ... and comparing Mayweather to poultry in the process.
"I wanted the Floyd Mayweather fight," Khan told Boxing News ... "Floyd in a way he chickened out, he didn’t give me the fight. Three years he was saying he was going to give me the fight, then he didn’t give me the fight."
When the Mayweather fight fell through, Khan turned his attention to Pacquiao -- but that deal fell apart earlier this month, with Khan claiming Pacman was dragging his feet.
"I am not going to wait around for Manny like I did for Mayweather," Khan told The National ..."I am willing to fight anyone, but it seems not everyone is willing to fight me."