The 'Mega Milk' meme, also known as 'Titty Monster,' features an illustration of a character from the 2008 doujinshi titled 'Motto! Hahauye Squeeze.' The image became a massive internet phenomenon on imageboards like 4chan and Reddit due to the character's exaggerated proportions and the specific English text on her shirt. It is primarily used as a reaction image to express excitement, abundance, or as a reference to its original adult context in a humorous way. Over the years, the template has seen countless redraws involving different characters from various anime and video game franchises, solidifying its place as a staple of early internet culture and anime-centric meme history.