Former Toronto pizza deliveryman turned Somali militant has falling out with fighters

American jihadist and former Toronto pizza deliveryman Omar Hammami has apparently had a falling out with his fellow fighters in Somalia, the National Post reports.

The Alabama-born Hammami, who goes by the nom de guerre Abou Mansour Al-Amriki, became the poster boy for the recruitment of western Islamists through his videos and web posts.

But according to the Post, Somalia's Al-Shabab organization has essentially disavowed Hammami, who lately has been complaining about its leaders behaving "like Hitler," taking away his car and keeping all the best "war booty" for themselves.

But no one likes a whiny jihadist.

A news release attributed to Al-Shabab turned up on Twitter last month that aimed to clarify the relationship between the Islamist group and the 28-year-old Hammami and respond to his accusations.

[ Related: Omar Hammami fondly recalls living in Canada, Tim Hortons coffee ]

"The opinions expressed by Abu Mansur, the alleged frictions and the video releases are merely the results of personal grievances that stem purely from a narcissistic pursuit of fame and are far removed from the reality on the ground," the exasperated-sounding statement says.

Fighters in Somalia are motivated by "rewards of altruistic self-sacrifice," it says.

"The Jihadi theatre nevertheless accommodates people of all sorts. Some, above others, occasionally rise to prominence often with little merit save for their uniqueness, and contrary to portrait of the grand strategist, recruiter and fund-raiser portrayed by the Western media, Abu Mansur Al-Amriki does not hold any position of authority within Harakat Al-Shabaab Al Mujahideen."

The statement goes on to accuse Hammami of "childish petulance" and spouting "superficial allegations, frivolous ramblings and whimsical desires," before dismissing him as a poseur.

The web site Long War Journal, which has been tracking the spat, said it's not clear whether Al-Shabab, after essentially accusing him of treasonous acts, has Hammami in custody.

Hammami was certainly a prominent member of the Al-Qaeda-linked group back in May 2011, when he spoke at a rally eulogizing Osama bin Laden a few days after he was killed by U.S. Navy Seals.

"We are all Osama," Hammami told the crowd, according to Long War Journal.

At one point Hammami was thought to have been killed by a U.S. air strike and later to have been executed by Al-Shabab.

[ Related: American added to the FBI's Most Wanted Terrorists list ]

Hammami became enamoured of Islamism while at university. He quit in 2002 and moved to Toronto two years later, eventually marrying a Somali-born woman. They split up when she refused to follow him to Somalia in 2006.

"I told her that I live under a tree and that I am speaking from a mountain," Hammami wrote in an autobiography he published online. "She didn't seem to understand. She refused to come to Somalia and insisted that I should simply come back to Canada and live happily ever after (fat chance!)."

The memoir waxed nostalgic about his time in Canada, including "Tim Horten's," but eventually dismissed Toronto's "Western defects" and the fact it was not "a pure Islamic society," the Post noted.