Nidā (ニダー) is an AA character that is a Mona variant and a derogatory Korean stereotype. He was made on 2channel's /korea/ board around March 15, 2001¹⁾ and derives his name from '-nida' (～니다), as Japanese users believed it was a sentence-ending particle.²⁾

• -nida (～ニカ) - Sentence-ending particle, like '-desu' (～です), that stems from '-nida' (～니다).³⁾
• uri (ウリ) - First-person pronoun. Stems from 'uri' (우리, lit. “we”), and not 'na' (나, lit. “I”).
  • urinara (ウリナラ) - Generic name for Korea that stems from 'urinara' (우리나라, lit. “our country”).
  • nimu (ニム) - Second-person pronoun.
• mansē (マンセー) - The 'manse' (만세) cheer, often translated as 'long live', and best known in its 'banzai' (万歳) or 'wànsuì' (万岁) forms. Given the time period that Nida comes from, the term was likely picked up from the Song of General Kim Jong Il because of how it stands out.⁴⁾⁵⁾
• nchanayo (ンチャナヨ) - This stems from 'kwaench'anayo' (괜찮아요, lit. “it's okay” or “no problem”).
• horuhoru (ホルホル) - Throat-clearing. In the past, it was machine-translated Korean laughter.
  • ue, hahaha (ウェー、ハッハッハ) - A sinister-sounding laugh that was allegedly heard on Radio Pyongyang in 2003,⁶⁾ regarding the North Korean abductions of Japanese citizens.⁷⁾
• aigō (アイゴー) - An expression of surprise, like 'gosh'. Stems from 'aigo' (아이고).
• shipparu (シッパル) / shibaru (シバル) - A profane word, like 'fuck'. Stems from 'ssibal' (씨발).

• minjoku (ミンジョク) - Stems from 'minjok' (민족, lit. "ethnic group").
• Irubon (イルボン) - Stems from 'Ilbon' (일본), the Korean reading of “Nihon” (日本).
• habyon (ファビョン) / habyōn (ファビョーン) - Stems from 'hwabyŏng' (화병, lit. “anger sydrome”), but it's often used out-of-context to belittle and stereotype Koreans as perpetually angry.
• Choppari (チョッパリ) / chopāri (チョパーリ) - Stems from 'tchokpari' (쪽발이, lit. “split feet”), the anti-Japanese slur that made fun of how tabi socks resemble animal hooves.
  • Uenomu (ウェノム) - Stems from 'waenom' (왜놈, lit. “wae bastard”), the anti-Japanese slur.
  • Tenomu (テノム) - Stems from 'ttaenom' (때놈, lit. “dirty bastard”), the anti-Chinese slur.
• hyoharu (キョハル) - 'kōkatsu' (狡猾, lit. “cunning”) → 'kyohwal' (교활), not actually used.
  • akuraru (アクラル) - 'akuratsu' (悪辣, lit. “unscrupulous”) → 'agoral' (악오랄), not actually used.
• Monguki (モングキ) - Machine translation of “monkey”, like the general “yellow monkey” slur.
• Hanseishiru (反省しる) - “Apolojuice”. The 2001 history textbook protests would see Kim Young-jin⁸⁾ hold a sign that said “Nihon wa Hanseishiru” (日本は反省しる, lit. “Japan, Apolojuice!”).⁹⁾
• tonsuru (トンスル) - Stems from 'ttongsul' (똥술), a traditional liquid folk remedy that uses dried feces, often translated as 'Korean poo wine'. Do note that it was a medicinal drink, not a real food item.

• “I feel a great sense of unity”

• Nida on the 2ch AA Illustration Project
• Nida on Niconico Encyclopedia
• Nida (5ch) on Namu Wiki [KO]

　　　　　ドゴォォォォン！！
　　　　　　　　;　'　　　　　;
　　　　　　＼,,(' ⌒｀;;)
　　　ｱｲｺﾞ!!,'　(;; (´･:;⌒)/
　　　∧＿∧(;.　(´⌒` ,;) ）　’
　Σ<#;｀Д´>(（´:,(’ ,； ;'),`
　　⊂ヽ　⊂ ）　/￣￣￣/
　　 ￣￣￣＼/＿＿＿/￣￣