그게 뭔데 씹덕아

• Pronunciation: "Goo-geh Mwon-deh Ssip-deok-ah" (pronounced roughly as "Goo-gay Mwon-day Sip-duck-ah")

The meme '그게 뭔데 씹덕아' (What is that, you nerd?) first appeared and began gaining traction in 2016 on the Classic Game Gallery of DC Inside. It subsequently spread more widely as famous BJs (broadcasting jockeys) and YouTubers started using it. To this day, it continues to be consistently used across various internet communities and social media platforms.

This meme is primarily used as a catchphrase to express a lack of understanding or interest, often with sarcasm or satire, when someone shares information or stories from a niche field that only they seem to know. Due to the word '씹덕' (ssipdeok, a derogatory term for an otaku or nerd), it's especially employed when unexpected otaku-related posts appear, or when someone insists on disseminating information that others are unfamiliar with. However, over time, among close friends, it has also evolved into a way to build rapport on specific topics or as a form of self-deprecating humor to honestly admit one's ignorance.

It is predominantly used by young generations who actively engage with internet communities, particularly males in their late teens to early thirties. The meme is especially common among those interested in subcultures such as gaming and anime.

• "Hey, the protagonist of the new anime that just came out is..." "What's that, you nerd?"
• "What's a friend, you nerd?" (Used self-deprecatingly to express not having friends.)
• "What's that, you old fogey?" (A variation used when encountering content only known by older generations.)

This meme includes the derogatory term '씹덕' (ssipdeok), which can be offensive to others. Therefore, using it without considering your relationship with the other person or the specific situation can lead to misunderstandings or be perceived as rude. It is advisable to refrain from using it in formal settings or situations that require decorum.