Saturday is National Dog Day. That is dog with one “g,” honoring the popular domestic animal. You might wonder whether the rapper-actor- author-chewing gum spokesman Snoop Dogg, at right, owns a dog. We can’t tell you, because his publicist didn’t call us back. We do know that the inspiration for his current name (he was born Calvin Broadus in Long Beach) was the Peanuts character Snoopy, a beagle. So celebrate with Dogg. Learn the slang-language he popularized, sometimes called Izzle. National Dog Day, according to a random Snoop Dog translator we found on the Web, would be Nizzle Dog Dizzle. Fo’ shizzle.