The part of the brain that holds the capacity for laughter, humor, jokes, etc. It's small, smaller than the medulla oblongata, but is somehow big enough to store decades of fart, sex, golf, and poop jokes. Without the Hahaguffawchuckleamalus, we'd all be as boring and humorless as a university professor, or the entire country of Russia.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.