There are about 21495 people in the United States with the first name Gay. They are mostly concentrated in the states of Texas and Florida. It is a rare and uncommon given name.
A video game moment from the 1996 platform video game Super Mario 64 became famous when it was misheard as "So long, gay Bowser!" This line was uttered by SM64 Mario as he threw a bomb at Gay Bowser to send him flying off into a rainbow-colored explosion of rage. This made the character's anger over his homosexuality visible to players, and it is regarded as a funny and memorable part of the game.
Despite that, the question of whether Mario actually said that line was brought up last year when voice actor Charles Martinet claimed he did not say it, as some fans have believed. He explained that he simply yelled, "So long, King Bowser!" While this explanation is plausible, it also makes the line even more infamous since there is little doubt that Martinet did indeed utter the line as intended.
There are some who would like Nintendo to remove the Gay Bowser line from the game. However, the company would risk being accused of homophobia if it did so. As of now, the line remains intact in a new port of the game for the Switch console. The only way to get rid of it is to boom him with a Bowser Bomb or Giygas Bomb, which will cause him to forget that he is Gay Bowser and become normal Bowser again.