"To shut the stable door after the horse has bolted", an idiom as old as horsemanship. Now it has a one shorthand, Hashtag friendly word to define the entire concept due to David Cameron and Razor the police horse in the scandal referred to as Horsegate. The origins on Gate as a suffix are in the Watergate trials of Richard Nixon
The most overused fucking kit on the Minecraft Hypixel Network. People overuse this kit to the point where it makes the game bad. Another word for horsetamer is cancer, actually scratch that, horsetamer is worse.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi