'That f***ing set me off,' Griffin said.
'So we had a fight in which I used inflammatory words like, ‘Look you f***ing untalented hack’…You know when you’re fighting with someone and you can kind of laugh at a point? Yeah, not that day.'
Griffin explained she felt bad about the heated exchange, and texted the Ellen Degeneres Show host but 'never heard back.'
This is not the first time Griffin has spoken about bad blood between herself and Ellen.
In a book she released in 2016 called Kathy Griffin’s Celebrity Run-Ins: My A-Z Index, she wrote about 'a daytime talk show host' that has a 'mean streak that everyone knows about.'
Griffin has also previously revealed that Ellen got her 'removed' from backstage at the Emmy awards.
On our Who Are You podcast, Pete Timbs goes one-on-one with Australia’s favourite celebrities to reveal fascinating stories you’ve never heard before. In the second episode, Timbs chats with Roxy Jacenko about balancing her career with family and how a drunken night ended in a $27,000 splurge on veneers.