The anti-Thaksin movement received a shot in the arm on Wednesday when three former top diplomats took the stage to lend their support and drag some skeletons out of the government's closet.

Kasit Piromya, former ambassador to Washington, Asda Jayanama, former representative to the United Nations, and his brother Surapong, former ambassador to South Africa and Germany, fired up the crowd with their damning statements about how Prime Minister Thaksin Shinawatra had lost all moral authority to lead the country.

Thaksin has become an embarrassment to the country and the longer he stays in office the more damage he will do the Kingdom's international standing, the former envoys said.

Diplomatic language was brushed aside as the three men shouted loud and clear, urging the demonstrators not to let up in their drive to drive Thaksin out of politics.

Asda, who was also posted to Singapore as an ambassador, went so far as to call for a boycott of goods and services from the island-state over the sale of Shin Corp to Singapore's Temasek Holdings.

"This will teach them that they cannot do business with Thaksin," Asda said.

Kasit said figures in the international community could only shake their heads over Thaksin's stubbornness. Diplomatic protocol prohibits them from saying anything.

Screaming at the top of his lungs, Surapong got the crowd going with the rallying cry of "Thaksin get out!" in both Thai and English.

"This is to let foreigners know what we're trying to achieve here!" he said.

For a group of men who spent their entire professional careers as the face of the homeland to the outside world, the finesse of their language was not apparent as tens of thousands of people cheered them on.

Scandalous revelations and allegations were made about how the Thaksin administration tried to bully its way through using diplomacy and international relations.

Kasit said the government tried to force him to sign off on controversial projects that he said were damaging to the Kingdom.

He pointed to the proposed rental rate on the Thailand Plaza lease in New York, as well as a lobbying firm linked to US Vice President Dick Cheney that the government tried to hire to help Deputy Prime Minister Surakiart Sathirathai's bid to become the next UN secretary-general.

He also said the government tried to convince the US Export-Import Bank to approve a loan to the family of former Burmese prime minister Khin Nyunt.

Fortunately for Thailand, Khin Nyunt was purged from power before the controversial deal saw the light of day, Kasit said.

Asda took a jab at his former boss, Surakiart, accusing Thaksin of trying to rope in the permanent five members of the UN Security Council to support Surakiart by selling him as an "obedient" candidate.

Naturally, their whistle blowing rubbed Surakiart the wrong way and provoked a stinging response from the Thai hopeful to succeed Kofi Annan.

Surakiart said it was "unbelievable" how the three men who at one time represented the Kingdom in foreign countries could conjure up such "lies".

Not exactly a stranger to controversy, Asda has almost from the first day of his retirement bucked heads with the Thaksin administration.

There is no love lost between the Jayanama brothers and the administration they consider morally bankrupt.

From day one of the Thai Rak Thai administration, the two men were at loggerheads with government policy. There were attempts to remove Asda from his post at the UN, while Surapong was quickly sidelined from any decision-making assignments.

Political insiders said Surapong had upset the government with his strong warning against the country moving closer to the military regime of Burma, claiming that Thailand's international standing was at stake.

Asda called the government's Burma policy "morally wrong".