Karl and Jasmine Stefanovic dour after Cassandra Thorburn 'takes a swipe' with ...

Karl Stefanovic and his new bride, Jasmine, who recently took her husband's  surname, looked a tad dour as they headed out on Sunday. 

On their minds may have been the 44-year-old's ex wife, Cassandra Thorburn, who appears to have taken a swipe at her ex with her new license plate. 

According to Herald Sun, Cassandra, 48, was seen on the weekend racing around with a new plate that read Fizzy - well known to be the nickname of Jasmine, 34. 

Not so Fizzy! Karl and wife Jasmine Stefanovic (R) wore confused expressions and refused to answer questions as they stepped out after Cassandra Thorburn 'takes a swipe' at her ex's new bride with nickname license plate, according to the Herald Sun

Not so Fizzy! Karl and wife Jasmine Stefanovic (R) wore confused expressions and refused to answer questions as they stepped out after Cassandra Thorburn 'takes a swipe' at her ex's new bride with nickname license plate, according to the Herald Sun

The nickname 'Fizzy' is a reference to 'Jassy Fizzle', a nickname given to Jasmine by Karl and their friends. 

It is a reference to the Missy Elliott and Ciara song 1, 2, Step.

The pair also used it as a social media tag for their 2018 Mexico wedding, with guests adding the hashtag #letsgetfizzykarl to photos taken on the day.  

Say, what? Karl's ex-wife Cassandra, 48, was seen on the weekend racing around with a new plate that read Fizzy - well known to be the nickname of Jasmine, 34

Say, what? Karl's ex-wife Cassandra, 48, was seen on the weekend racing around with a new plate that read Fizzy - well known to be the nickname of Jasmine, 34

Say, what? Karl's ex-wife Cassandra, 48, was seen on the weekend racing around with a new plate that read Fizzy - well known to be the nickname of Jasmine, 34

Hmm: The nickname 'Fizzy' is a reference to 'Jassy Fizzle', a nickname given to Jasmine by Karl and their friends

Hmm: The nickname 'Fizzy' is a reference to 'Jassy Fizzle', a nickname given to Jasmine by Karl and their friends

Confused? It's unclear if the name has any meaning for Cassandra, however is currently attached to her new Mini Cooper

Confused? It's unclear if the name has any meaning for Cassandra, however is currently attached to her new Mini Cooper

It's unclear if the name has any meaning for

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