It basically means "obviously". Similar to the phrase "Does a bear shit in the woods" or "Is the Pope Catholic" or "Is Snakes on a Plane the best movie ever"
If this definition is unclear, see Man vs. Beast 2 on the Fox Network.
Celebrated on Nov 26th, also known as the day right before Beat A Furry Day is the day where furries can physically harm non-furries, or in this case normies is the term used, with absolutely no consequences.
Normies can not fight back! They may defend themselves using any type of armor but they may not attack under any circumstances.
Furry: hey there buddy! It’s Beat a Normie day!
Person: oh god- oh god no! Please I beg of you I have a wife and kids!
Furry: *proceeds to use a bat to beat person like a piñata with chronic arthritis*
One day on July 17th, all pedophiles surrender to be beaten to death by a ruthless mob, they will have no defense since there is no defense for their actions