Gowda's remarks on Yeddurappa came over the controversial Bangalore-Mysore Infrastructure Project, where farmers were protesting against land acquisition at Hemmigepura village.
"Who is this Yeddyurappa? Bas***d! Who the hell does Yeddyurappa think he is? Does he have any shame? This is the man who hid behind Shobha Karandlaje to save himself. He said he will resign from BJP and join JD-S to become a minister. What is this nonsense," Gowda said.
"He can go to any extent for the sake of money. My father did not give me birth to resort to such cheap actions like Yeddyurappa," said Gowda.
JDS chief said he supported the farmers "to demand justice" for them.
Some hours later, Gowda said he was not speaking about Yeddyurappa and if his words have caused hurt he expresses "regret".
Reacting to Gowda's remarks, Yeddyurappa said, "I am deeply hurt" and added that the JD-S chief was "desperate" to hit out at him" and was therefore "using such words".
Speaking to reporters, Yeddyurappa said he had the greatest respect for Gowda and did not expect such language from him.
"The people of Karnataka are watching all (this)," he said, adding he would reply at an appropriate time.