The episode: “The Touch of Satan,” ep. 908
The riff: Growled by Mike in imitation of the family patriarch, a farmer proudly sporting massive sweat stains on his shirt.
The explanation: This line is a parody of a long-running ad campaign for Mitchum, an anti-perspirant. From the 1970s on, Mitchum ads often claimed that it was such a strong fighter of perspiration an odor that it was “so effective you can skip a day.” That slogan apparently lived on all the way to 2007 before being dropped, presumably because someone finally realized it unintentionally makes you sound like a slob who can’t be bothered to apply deodorant on a daily basis.
Novelty factor: It may sound odd, but I’ve never even heard of this brand before, much less the slogan. Not sure how I’ve missed it.