A contraction of "alternate account", an alt is an account created by a user who already has an account they use most of the time, known as their main. An alt is created for one of three reasons:
- To have an account separate from the main, to retain posting priviledges in case the main in warned, suspended, or banned;
- To display a humorous or inside-joke word or phrase, in the same manner as sigs;
- To gain prestige as having "more alts than j00 lololol!!1~"
Some examples of famous alts are Phoenix Flattener, Tatsumaki Senpuu, and Applause Sign.