Gak
Gak is a stretchy Mattel putty toy from 1992 that became a Brony chat meme in late 2012, after Nickelodeon's relaunched 'Gak is Back' commercials aired on repeat during My Little Pony livestreams and flooded chat rooms with the word.
Overview
Gak is a stretchy, slimy putty toy first released by Mattel in 1992, later relicensed by Nickelodeon for a 2012 comeback under the tagline 'Gak is Back'1. Its life as an internet meme is separate from the product itself, and comes almost entirely from Bronies mocking the toy's repetitive TV ads2.
The meme is basically the word 'Gak' typed over and over in chat rooms, plus fan art, image macros, animated GIFs, and YouTube Poop edits that splice the commercial audio into My Little Pony: Friendship Is Magic scenes3. It is a fandom in-joke rather than a wider viral format, and it stuck because the ad ran back-to-back so many times during a single commercial break that the word lost meaning3.
How It Spread
How to Use This Meme
The standard Gak post is just the word repeated, often as a wall of text or captioned over a My Little Pony screenshot. YouTube Poop creators typically splice the 'Gak is Back' voiceover into cartoon clips for short, absurdist edits3. Outside the Brony context, the word also carries unrelated slang meanings, including drug slang, that are tracked on Urban Dictionary5.