It combines Lee Know and I.N's pairing name, "Arirang", with "ddya", Seungmin's onomatopeia.
Other name(s)[]
아리땨움 ariddyaum, a pun with the word 아리따운 arittaun ("beautiful").
Ex-ESFJs (구엣프제즈 guetpeujez), initially "ESFJs" because all three of them got ESFJ as a result for the MBTI test in One Kid's Room. But their MBTIs changed afterward, and the name changed to "Ex-ESFJs".
무야호라차 muyahoracha because they used to say "Muhayo" (a Korean meme) a lot. This nickname was coined during their appearance in Kiss The Radio in 2021.
SavageRacha, as they are the members who don't shy away from roasting each other or other members.
정상즈 jeongsangz ("Normalz") because in the "MANIAC" choreography, they are the three members at the front during the lyrics "Back to cosplaying as what society defines normal to be".[1]
Trivia[]
They are often considered as the tsunderes of the group, reluctant in showing affection in direct ways but actually being warmer on the inside.