alt account; alternate account
Internet slang abbreviation of 別アカウント. Refers to a secondary or separate account on social media, forums, etc., often used for a different persona or purpose.
See also: 別アカウント
I tweet about my hobbies on my alt account.
I use an alt account online without revealing my real name.
Common internet slang spelling using ateji 垢 for アカ.
Clearer spelling using katakana アカ; avoids potential confusion with 垢 (dirt).
Abbreviation of 別アカウント (betsu akaunto, 'separate account'). The kanji 垢 is ateji for アカ, commonly used in internet slang.