Reply #26: further explanation..

[SoCalDem]

from wikipedia

Even today, the phrase "Eddie Haskell" is known to refer to an insincere brown-noser.

He was known for his neat grooming<2>—hiding his shallow and sneaky character. Typically, Eddie would greet his friends' parents with overdone, good manners and often a compliment such as, "That's a lovely dress you're wearing, Mrs. Cleaver." However, when no parents were around, Eddie was always up to no good—either conniving with his friends, or picking on Wally's younger brother Beaver. Eddie's two-faced style was also typified by his efforts to curry favor by trying to talk to adults at the level he thought they would respect, such as referring to their children as Theodore (Beaver's much-disliked given name) and Wallace, even though the parents called them Beaver and Wally.

A weaselly wise guy, Eddie could be relied upon to connive and instigate schemes with his friends—schemes for which they would be in the position of blame, if (and usually when) caught. One of his most infamous pranks with the Cleaver boys involved fastening a chain around the rear axle of their friend Clarence "Lumpy" Rutherford's car, causing unplanned damage as the entire third member and wheels became detached when he tried to move the car. The prank has been repeated on police cars in scenes in the films American Graffiti and Gone in 60 Seconds.

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Played by actress Alison Arngrim, Nellie Oleson was a manipulative, witty, sharp-tongued character on the NBC television show, Little House on the Prairie. Her parents, Nels and Harriet Oleson, owned the mercantile in the small town of Walnut Grove, set in post-Civil War Minnesota. Nellie had long blond hair, acted very prissy and spoiled, and had a vicious and manipulative personality. Her counterpart and nemesis was the tomboy Laura Ingalls, played by Melissa Gilbert. Nellie and Laura feuded during their school years together.