Yesterday, in excoriating British Prime Minister Gordon Brown for expressing support and admiration for Pres. Obama at a news conference during the G-20 summit, Rush Limbaugh made yet another reference to sodomy:

LIMBAUGH: “So here is a full-fledged, committed global socialist praising the president of the United States for all of his achievements in the first 70 days — a global socialist happy with the changes Obama has made, and ‘you have changed America’s relationship with the world,’ which is why all of the losers that make up the protesters are breaking bank windows,” Limbaugh said. “But the slobbering, the slobbering – this guy, folks I’m telling you – if he keeps this up throughout the G20, Gordon Brown will come down with anal poisoning and may die from it.”

Of course, there is no such thing as “anal poisoning,” but the formulation suggests Limbaugh is using the phrase as a slightly more politically correct way of saying Brown will be infected with HIV, contract AIDS and die.

And this is not the first time Limbaugh has suggested that the friendship of two politicians was more than an innocent bromance. In February 2008, he used the same phrase to describe the friendship of Sen. Lindsey Graham (R-SC), who is 54 and has never been married, and Sen. John McCain:

Limbaugh was ranting against Sen. John McCain on his radio show this week when a caller asked whether he thought McCain would pick Sen. Lindsey Graham as his running mate. Limbaugh doubted it, though he admitted: “I may be wrong … Lindsey Graham is certainly close enough to [McCain] to die of anal poisoning.”

Over the last year, Limbaugh has made at least three other references to anal sex during his radio propaganda rantfest:

Jan. 21, 2009:

LIMBAUGH: We are being told that we have to hope he succeeds, that we have to bend over, grab the ankles, bend over forward, backward, whichever, because his father was black, because this is the first black president.

Sept. 16 2008:

[Troopergte] is pure sexism in Alaska on the part of these old boys trying to get rid of Sarah Palin, and she didn’t put up with it, and she didn’t bend over and let them have their way.

June 23, 2008:

CALLER: Hello. I want to know how the Republicans don’t need Christians and conservatives, and they think we’re 30 percent. Twelve percent black people in the population. Ten percent — they claim — homosexuals in the population. Rush, honey, when did 30 percent get to be a small number?

LIMBAUGH: I don’t — I think it’s actually larger than 30 percent. But let me see if I can get your question right. You want to know why the Republicans are willing to say, “Screw you,” to 30 percent or more of their voters and yet Democrats will bend over, grab the ankles, and say, “Have your way with me,” for 10 percent and 2 percent of the population?

We are not psychologists, but it could be that Limbaugh’s obsession with all things anal has something to do with a youthful ailment — one that he used to escape being drafted to serve in Vietnam after he dropped out of collge:

[That] Limbaugh did indeed have a pilonidal cyst seems indisputable, as he himself, his mother, and his brother all maintain that he did:

“Yet, for all his father’s patriotism, and deep-rooted fear of Communism, Rusty (Rush) did not enlist to preserve those ideals. The official explanation, David Limbaugh said, is that Rush had a student deferment and, like his father, had a pilonidal cyst on his ass which qualified him for a medical deferment.

Limbaugh’s mother said in 1993 that she did not know if her son had a physical or not, but she added that he did have a pilonidal cyst like his father.“

In case you’re wondering — here’s a description of a pilonidal cyst:

A pilonidal cyst is an abnormal pocket in the skin that usually contains hair, skin debris and other abnormal tissue. A pilonidal cyst is almost always located near the tailbone at the top of the cleft of the buttocks. The term “pilonidal” comes from the Latin words for hair (”pilus”) and nest (”nidus”).

On the other hand, it’s just as likely that his obsession goes much deeper than that. Freud’s theory was that anal-obsessives suffered from what he called “arrested development,” and while that theory is outdated, it might be applicable in this one instance.