setting-obsessed creator; worldbuilding nerd
Derogatory internet slang for a would-be writer or creator who fixates on detailed background settings at the expense of actual storytelling. Often used in online fiction communities.
That setting-obsessed creator decides every detail like characters' birthdays and blood types, but the story never progresses.
If you become too much of a worldbuilding nerd, you'll never finish your work.
Compound of 設定 (setting) and 厨 (slang suffix for an obsessed person, from 厨房 meaning 'kid' or 'noob'). The exact origin of 厨 as a derogatory suffix is uncertain but is common in internet slang.