A nasty private exchange between mayoral hopeful Bo Dietl and Reform Party honcho Frank Morano went nuclear Tuesday after Morano went public with part of it.

“F–k you, pussy,” Dietl wrote in the testy exchange over the Reform Party endorsing Sal Albanese over him.

Deitl defended his comments on Twitter, noting that Morano is “a man.”

“This was a private text to a man and he knows exactly what I’m talking about,” he wrote. “It wasn’t meant for anyone else to see.”