suffix
diminutive suffix; -chan; -kun
Internet slang suffix expressing affection, often attached to names of anime characters, idols, or cute things. Similar to たん but with a slightly different nuance; たそ can sound more playful or jocular.
See also: たん
このイラストのミクたそ、めっちゃかわいい!
This drawing of Miku-taso is super cute!
推しのたそが今日も尊い。
My oshi-taso is precious again today.