Furious about being run into by the McLaren driver at the exit of the tunnel, Finn Raikkonen initially called his Mexican rival an "idiot" and "stupid".
"We've lost a lot of points to Sebastian (Vettel) in the championship and you can't afford to lose ground like that," said Raikkonen.
Asked if he will seek Perez out for talks, Raikkonen insisted: "No, that won't help."
Asked what will, he suggested: "Maybe someone should punch him in the face."
Ferrari's Fernando Alonso also had trouble with Perez in Monaco, skipping the chicane after an attack and having to give the place to his rival.
"Only McLaren has to be happy with him," former McLaren driver Alonso said coyly afterwards.
Team boss Martin Whitmarsh, however, insisted McLaren is indeed happy with the feisty 23-year-old, saying run-ins are "what happens in Monaco occasionally".
"I am happy with his spirit and his challenge," he said.
"You can over push sometimes but I think he did some great overtakes. I have got to be pleased that he is there, he is committed and racing," added Whitmarsh.