A term (usually preceeded by "for those of you in. . .") used by the nationally known radio talk show host Rush Limbaugh to poke fun at people who are not too bright. Based on an actual community in west Sacramento California whose residents Rush has jokingly characterized as being backwards, out of touch, or just mentally slow.
"Library - for those of you in Rio Linda that would be 'liberry'"
"A new anti-crime campaign, accounted for nearly a quarter of homicides--" that would be 25% for those of you in Rio Linda"