Clarkson seemingly caught wind of Morgan's anecdote, and took to Twitter to respond.
"What a monumental t*** this man is. I cannot wait for the day he goes to prison," he shared with his followers, along with a picture of Morgan dressed in a suit and wearing sunglasses.
"You had your chance @JeremyClarkson - unfortunately you punch like a muscle-depleted chihuahua. So pipe down, you gnarled old fool," replied Morgan, referencing a previous clash between the two when Clarkson swung a right hook at the former Daily Mirror editor at the 2004 British Press Awards.
And things gradually went south from there.
"Americans. Don't trust Piers Morgan. He knows how to hack your phone and will f*** up your army for a buck," wrote Clarkson.
"And why are you issuing advice to Americans @JeremyClarkson? They've never heard of you," sniped Morgan, adding, "I wonder if poor old @JeremyClarkson 's little hissy fit today is connected to Top Gear's disintegrating ratings & rumours it may be axed?
"Being called a 'monumental t**t' by a racist pot-bellied pig @JeremyClarkson who wants nurses executed is the purest definition of irony," he wrote.
"Last time I saw Piers Morgan, he was at a party listening to Samuel L Jackson and Justin Timberlake. I was there with my friends," Clarkson wrote, to which Morgan replied, "Mate, @JeremyClarkson - it's not my fault @jtimberlake @Pharrell & @SamuelLJackson hadn't a clue who you were! Try being more successful."
He continued, "Nor @JeremyClarkson is it my fault I have 1.3m more followers than you. It's called 'popularity'. Now go home.
"Ahhh, of course, @JeremyClarkson's last tweet reveals the reason for his fury....read this, and all is explained," added Morgan, linking to his column.
Clarkson then took aim at Morgan's CNN show.
"Piers. Let's finish it with this. Your show attracts a global audience less than (UK TV show) Cash in the Attic. That's why you're going to be sacked," said Clarkson, adding, "I'm going to bed now, happy at the news from CNN insiders that Piers Morgan will soon be sacked."
Countered Morgan, "Cash in the Attic gets 500m viewers?"
"Piers claims his show gets 500m viewers. Hahahahahaha. It's 110,000 on good day. About 380m behind Top Gear," tweeted Clarkson.
Morgan replied: "That was fun @JeremyClarkson - let's do it again sometime. #FleshEaten"
He followed that up with: "I'd like to apologise to @JeremyClarkson - my mother always told me never to pick on little girls," and linked to a picture of an youthful Clarkson rocking some serious Lego hair.
Your move, Clarkson.
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