Borujoa (ぼるじょあ), typo of 'bourgeois',¹⁾ is a short-lived AA character whose name was derived from a tripcode user from 2002 and, once the tripcode leaked, users were quick to imitate him across every boards, until a spammer started using it and it died out soon after.

In 2002, the tripcode user “Burujowa(Bourgeois) na Wakamono(Youth)” (ブルジョワな若者(わかもの)), later “Borujoa” (ぼるじょあ), had began posting on 2channel's /pcqa/ from July 30, 2002²⁾ to August 30, 2002.³⁾ After a month, they'd make their tripcode '◆EncckFOU' (#ぶるじょあ) public, and the users were very quick to imitate him by spamming “Borujoa's Question Box” (ぼるじょあの質問箱, Borujoa no Shitsumonbako) threads on all boards.

The threads were a basic question-and-answer format, where users answered the questions with their best impersonation under the now-public tripcode. However, the phenomenon got out of hand and it was later caught in one of the spam waves, disincentivizing users on /gline/ and everywhere else. It has been over two decades since then, so most people won't remember him.

Borujoa has the first-person pronoun of 'boku' (ボク), 'boru' (ぼる), 'borujoa' (ぼるじょあ), and 'joa' (じょあ). His typing quirks includes turning: 'are?' (あれ？) → 'arē' (アルェー), 'ē?' (えー?) → 'eē' (エェー), and 'uwā!' (うわー!) → 'ouwā' (オゥワー). Lastly, he would end his sentences with '-daYO' (○○だYO), '-daC' (○○だC), or '-daNE' (○○だNE), with the term 'YO' apparently signaling some level of alleged expertise.

• Nurupo

• Borujoa on the 2ch AA Illustration Project
• Borujoa on Pixiv Encyclopedia