My homegirl Ellen Magenheim (who besides being a NOOBs informant is a distinguished Professor of Economics at Swarthmore College) writes: “another one: easy peasy. I just saw it on the Facebook page for Green Aisles Grocery [a South Philadelphia market]; i.e., ‘Easy Peasy Dinner courtesy of Green Aisle and Severino Pastas!’”
Ellen is spot on. The OED’s first citation for the phrase–whose non-rhyming American equivalent is easy as pie–is from 1976, but it originated some years before that in the expression easy peasy lemon squeezy, which may or may not have originated in an advertising slogan for the “washing-up liquid” (aka dish detergent) Lemon Sqezy [sic].
Whatever, easy peasy is now officially all over the U.S.: a blog, a song from the (Baltimore) band Ponytail, a netbook operating system, and the press, including this three days ago from the Huntsville (Alabama) Times: “You would think the area would be thick with restaurants and operating one successfully would be easy-peasy.”
Previously, Ellen had suggested dead easy, noting this quote from a Nicolas Kristof article in the New York Times:
Along with a no-fly zone, another important step would be to use American military aircraft to jam Libyan state television and radio propaganda and Libyan military communications. General McPeak said such jamming would be “dead easy.”
But that will have to wait for another day.