Bulk is the scrotum and skull is the penis. This is a reference to the "comedic relief" characters from the original Power Rangers series. Bulk is the scrotum because he's fat. Skull is skinny so he's the penis.

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.

One fat person and one very skinny weird looking person