Garry Monk accused Stoke's Victor Moses of cheating by making a "blatant dive" in Swansea's 2-1 defeat at the Britannia Stadium, adding that the winger should be ashamed of himself and punished for his actions.
Swans boss Monk was left fuming at the Potters' equaliser in the Barclays Premier League contest, which came in the 43rd minute after Moses went to ground in the visitors' box under the attentions of Angel Rangel.
It appeared Moses had gone down somewhat easily but referee Michael Oliver awarded a penalty which Charlie Adam tucked away.
After the match, Monk - in no doubt it had been a "massive game-changing moment" - branded Oliver's decision "disgusting", suggesting even Stoke's bench could not believe the call that had been made.
Monk said: "It was a massive, game-changing moment, and for me, it is a disgusting decision to be honest.
"How he (Oliver) can't see it is a blatant dive is beyond me.
"For me, Moses has cheated the referee into making that decision, and he should be punished for that, for clear cheating.
"He should be ashamed of himself for diving like that. But this is the world we live in. That is what some players want to do, so I have to live with that - to live with an extremely poor decision, once again.
"He is supposed to be a professional referee at the highest level - you wouldn't expect that from a professional.
"For me, everyone in the stadium was amazed he gave it.
"I looked straight at their bench and they were looking at me as if they couldn't believe it.
"He (Oliver) is the only guy in the stadium who thought that was a clear-cut penalty."
Monk also had strong words for referees' chief Mike Riley.
The Swansea manger believes his side have been victims of a number of incorrect decisions by officials, and said: "I have sent a DVD off with a letter, expressing my disappointment and I've had no contact from Mike Riley.
"His (Riley's) job is to ring me - it's not mine to ring him.
"He is supposed to be the head of these guys and overseeing it all, and seeing what managers feel.
"For me, that is very poor."