The 'OMG X Hi!!!' meme is a popular reaction image template featuring a character—often depicted as a young woman or a stylized cartoon—shouting an enthusiastic greeting at someone who appears noticeably less excited. It originated on social media platforms like Twitter and TikTok to satirize the high-energy, often performative nature of stan culture and internet friendships. The meme works by contrasting the intense text on the left with a stoic or unbothered figure on the right. It is widely used to represent the feeling of being overwhelmed by a specific interest, a person, or even a recurring personal struggle that you can't help but acknowledge.