The argy bargy began two weeks ago, when mother-of-five Price announced that her latest arrival, a baby daughter, would go by the name of Bunny.
In her own inimitable fashion, she explained the logic behind the choice to the Mirror: "I would have called Bunny, Bunnie, if I could have put a heart above the I to make it cute. But on a keyboard there's no such heart so I couldn't."
"I don't take note and I really don't give a s**t about what anyone says about it," she added. "I like it, Kieran likes it and that's it - we chose it."
It's not often we say this, but good on you, Katie!
But mouthy Hopkins - well known for her un-PC stance on baby names - couldn't resist an acid-tongued jibe at the choice:
Bunny? BUNNY?! Makes sense I guess, given your dad was going at it like a rabbit with all of mums mates.
- Katie Hopkins (@KTHopkins) September 15, 2014
Price discovered husband Kieran Hayler's long term affair with her best friend, Jane Pountney, while five months pregnant with Bunny. After a fiery Twitter rant against the pair, Katie and Kieran eventually reconciled (although we imagine Jane has been struck off the Christmas card list).
Businesswoman and best-selling author (yes, really) Price took the high road in the wake of Hopkins' sassy quip.
"She vile about everyone," she told OK magazine. "It's not worth talking about her."
The former glamour model's Twitter bio warns 'never underestimate the pricey!', and we certainly wouldn't want to be on the wrong side of the artist formerly known as Jordan.
Professional provocateuse Katie Hopkins had better think twice before engaging in a war of words with 'Pricey'. Remember her Twitter dressing-down of former best friend Jane Pountney after discovering her affair with love rat Kieran?
We know that neither of them is what you'd call publicity-shy, so we can't wait to see what zingers Hopkins will launch in return via her constantly churning Twitter feed.
Ding, ding, ding!