GachiGASM is an original emote, created for the streaming website Twitch.tv. Very similar to the emote Kreygasm, the emote features Billy “Gachimuchi” Herrington with his head tilted back with great pleasure on his face, almost like when someone is climaxing. gachiGASM has spawned many variants which are as following:
Originally taken from an adult entertainment video featuring homoerotic actor Billy Herrington which was later on turned into a remix on the website plug.dj, Twitch.tv streamer Forsen featured it on one of his streams, thus giving it attention to lots of people and prompting the creation of gachiGASM in 2015.
The emote was added to the BTTV (Better Twitch TV) collection in 2016, which is a browser extension that adds many new features to your Twitch.tv (like new unique emotes, chat features, etc.), thus enhancing your viewing experience.
As of 10/12/2019 according to the website StreamElements, gachiGASM is the 20th on the list of most popular/used emotes on the website Twitch.tv, making it one of the more popular emotes.