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As this is an adult work (R18), it contains explicit sexual content and is intended strictly for mature audiences.
Foreign learners should use the phrase with caution, as misinterpretation can lead to awkward or inappropriate implications. uchi no otouto maji de dekainn
The phrase did not become famous immediately. It took three distinct waves of internet culture to cement its status. As this is an adult work (R18), it
At face value, it’s a harmless observation about a sibling’s stature. So why is it a meme? Because in context, Dekai (huge) rarely refers to height. Dekai (huge) rarely refers to height.