The outspoken reality star took aim at Marnie in his latest Daily Star column following her remarks that Geordie Shore needed some new, younger men in the cast.
"We all know that the Geordie Shore crew is like some twisted family, but Marnie asking for a fresh cast with some new boys is pretty ridiculous," he wrote, before referencing the fact both he and co-star Aaron Chalmers have slept with Marnie in the past.
"Maybe she just wants some newbies because me and Aaron Chalmers have both been through her like a train."
Gaz went on to say: "If we were to do anything, it should be giving Marnie a bottle of vodka permanently because without one, she is boring as f**k."
His remarks came after Marnie tweeted in May: "It's about time Geordie Shore introduced some fit younger lads. Get rid of Gary and Aaron both old as f**k, boring and full of sh*t (sic)."
Gaz and Marnie slept together back in series eight, while Marnie and Aaron did the deed in the currently airing Big Birthday Battle.
The trio are all now filming series 13 in Magaluf.
We wonder how Marnie will react to Gaz's comments? The cast usually have no access to their phones or social media accounts during filming, so it might be a while before we find out...