Uchi no Otouto, Maji de Dekain Dakedo Mi ni Konai

Option 5: The Warning Review (For the unprepared)

「デカい」(Dekai)

Q: Where did the phrase originate from? A: The phrase originated from a 2012 Japanese manga titled "Uchi no Otouto Maji de Dekain Dakedo Mi ni Konai."

For learners: The mistake is a single consonant (tsu → ∅). That’s how fragile and funny language can be.