Former Sen. Alan Simpson is not happy with the California Alliance for Retired Americans.

In an April letter full of bad language, the pugnacious Wyoming Republican criticized the seniors group for a flyer that protested a deficit reduction plan from the task force he co-chaired with Clinton administration honcho Erskine Bowles.

"Your little flyer entitled 'Bowles! Simpson! Stop using the deficit as a phony excuse to gut our Social Security!' is one of the phoniest excuses for a 'flyer' I have ever seen," Simpson wrote on his official Senate stationery.

"What a wretched group of seniors you must be to use the faces of the very young people that we are trying to save, while the 'greedy geezers' like you use them as a tool and a front for your nefarious bunch of crap," Simpson continued. "You must feel some sense of shame for shoveling this bullshit."

The National Commission on Fiscal Responsibility and Reform, created by President Barack Obama in 2010 to craft a plan to tackle the nation's structural budget deficits, recommended trimming Social Security costs, by raising the retirement age and creating a new formula for calculating benefits, in order to save money. The Simpson-Bowles plan, as it is known, would also slightly increase Social Security payroll taxes.

The California Alliance for Retired Americans is not a fan of the plan.

Neither Simpson nor the California Alliance immediately responded to requests for comment.

The Social Security trust fund has enough money to pay full benefits until 2033, according to the most recent trustees report, at which point incoming Social Security tax revenue would be sufficient to pay 75 percent of benefits.

Simpson has previously called Social Security "a milk cow with 310 million tits!"

Click HERE to download a PDF of Simpson's letter, which was forwarded to media by the AFL-CIO.

Below, more of Simpson's greatest hits:

Loading Slideshow...
  • 'Cow With 310 Million Tits'

    "I've made some plenty smart cracks about people on Social Security who milk it to the last degree. You know 'em too ... We've reached a point now where it's like a milk cow with 310 million tits!" -- Simpson on Social Security <strong>Source: <a href="http://www.huffingtonpost.com/2010/08/24/alan_simpson_social_security_n_693277.html" target="_hplink">The Huffington Post</a></strong>

  • 'Blood Sweat And Eyeballs'

    "A lot of blood, hair and eyeballs have to lay on the floor before we finish." -- Simpson on fixing the budget deficit <strong>Source: <a href="http://www.cnbc.com/id/15840232/?video=1421510966&play=1" target="_hplink">CNBC</a></strong>

  • 'Snoopy Snoopy Poop Dogg'

    "This is a fakery. If they care at all about their children or grandchildren, and sometimes I doubt that -- I think, you know, grandchildren now don't write a thank-you for the Christmas presents, they're walking on their pants with the cap on backwards listening to the enema man and Snoopy Snoopy Poop Dogg, and they don't like them!" -- Simpson on young people and their grandparents <strong>Source: <a href="http://www.huffingtonpost.com/2011/03/07/alan-simpson-snoopy-poop-dogg_n_832626.html" target="_hplink">The Huffington Post</a></strong>

  • 'The Lesser People'

    "We're trying to take care of the lesser people in society." -- Simpson on Social Security <strong>Source: <a href="http://www.ustream.tv/recorded/7698698" target="_hplink">Ustream</a></strong>

  • 'Just Let Them Sink'

    "We have the ability, and I hope the trust of each other, to adjust and put together a package. And if the American people and the Congress don't like it, then just let them sink." -- Simpson on the budget deficit <strong>Source: <a href="http://www.foxnews.com/story/0,2933,591463,00.html" target="_hplink">Fox News</a></strong>

  • 'Picking With The Chickens'

    "You'll be picking with the chickens yourself when you're 65." -- Simpson on Social Security <strong>Source: <a href="http://www.ustream.tv/recorded/7698698" target="_hplink">Ustream</a></strong>

  • "When I Make A Mistake 'It's A Doozy'"

    "Over the last 40 years, I have had my size 15 feet in my mouth a time or two. To quote my old friend and colleague, Senator Lloyd Bentsen, when I make a mistake, 'It's a doozy!'" -- Simpson on Social Security <strong>Source: <a href="http://www.huffingtonpost.com/2010/08/24/alan_simpson_social_security_n_693277.html" target="_hplink">The Huffington Post</a></strong>

  • 'Sparrow Belch'

    "We're going to get rid of all earmarks, all waste, fraud and abuse, all foreign aid, Air Force One, all congressional pensions. That's just sparrow belch in the midst of the typhoon. That's about 6, 8, 10 percent of where we are. So, I'm waiting for the politician to get up and say, there's only one way to do this: you dig into the big four, Medicare, Medicaid, Social Security, and defense. And anybody giving you anything different than that, you want to walk out the door, stick your finger down your throat, and give them the green weenie." -- Simpson on Social Security <strong>Source: <a href="http://www.huffingtonpost.com/2010/08/24/alan_simpson_social_security_n_693277.html" target="_hplink">The Huffington Post</a></strong>

Also on HuffPost: