The occasion is usually a rare moment of light relief for reporters covering the febrile world of Thai politics, in a country which has witnessed a string of military coups, violent street protests and toppled governments - and where defamation is a criminal offence.
But this year, in a statement, the Government House press corps said they were opting to stay mum because "the cabinet of [Prime Minister] General Prayut Chan-O-Cha came into power by special way, not by the normal election under the democratic system".
"We also do not want the 2015 skipping of the nicknaming to be used to expand existing conflicts in Thai society or to be used as a political tool by any groups or individuals," the statement read.
However the decision is illustrative of an increased need for self-censorship since the military took over.
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Former army chief Prayut seized power in May 2014 toppling the democratically elected government of Yingluck Shinawatra after months of debilitating street protests against her administration, fuelled by support from Bangkok's pro- military, royalist elite and middle classes.
Yingluck's administration was one year dubbed the "Floundering Crab" government by journalists, a pun on her personal nickname "Bpoo", which means crab in Thai.
Prayut is known for his off-the-cuff remarks, particularly when dealing with the media. He famously threw a banana peel at one reporter and stroked another on the head.
Both incidences he wrote off as the result of his zany sense of humour and friendly demeanour.
He also referred to executing critical journalists, a comment he insisted was a joke once headlines went viral.
"This has been a year where I cannot make jokes because the media will just turn it into a news story," he said.