십덕후

The 'Sibdeokhu' meme gained public attention and caused a stir through the 44th episode of tvN's 'Martian Virus' titled 'Sibdeokhu,' which aired on January 27, 2010. Immediately after the broadcast, it received explosive interest in online communities, spreading rapidly, and was at the center of various parodies and controversies throughout 2010.

The term '십덕후' (Sibdeokhu), pronounced roughly as 'Sib-duk-hoo,' is a neologism created by combining 'odeok' with 'odeok,' a variation of the word 'otaku,' to mean 'an otaku beyond an otaku.' It was coined to express an extreme level of immersion that surpasses existing otaku, while softening the somewhat harsh nuance of 'ssip' (씹, meaning 'f*ing' or 'extreme'). It is mainly used to refer to someone who expresses excessive affection for a specific 2D character or engages in 'deokjil' (fandom activities) that go beyond social norms.

It was primarily used by internet users in their late teens to early thirties, especially those with a strong interest in subculture or active in online communities. Although its recognition was high across all age groups due to being introduced through a popular program like 'Martian Virus,' its active use as a meme was prominent among younger generations and those familiar with online culture.

• 'Sibdeokhu' became a proper noun referring to that episode, appearing on the main pages of various portal sites after the broadcast.
• In the comedy program 'Gag Republic,' it became the origin of a segment called 'Baekdeokhu Virus,' and it also appeared as a parody subject in 'Comedy Big League'.
• On DC Inside's Hapilgal, 'Odeokfate' became a new essential element for composites, leading to the creation of various composite images.
• Famous singer Lee Seung-hwan even referred to himself as a 'middle-aged otaku,' stating that he was more of an otaku than the 'Sibdeokhu' participant.
• During the broadcast, MC Kim Sung-joo left a message saying, 'I wish you a good love.' This phrase later transformed into a sarcastic remark, used to mock forbidden loves.

The expression 'Sibdeokhu' has been criticized for significantly contributing to the spread of negative perceptions of otaku culture. This is because other otaku suffered social condemnation or prejudice due to the actions of 'Odeokfate,' the main figure of this meme. Therefore, when using this term, one should be careful as it may be perceived as belittling or mocking people who enjoy specific hobbies or cultures. Furthermore, the main character of the meme has a history of being involved in a lawsuit and arrest case related to malicious comments, so extra caution is required when mentioning this individual.