1. What does it mean?
다꾸 abbreviates 다이어리 꾸미기. It is the hobby of arranging writing, stickers, drawings, tape, and other elements in a diary or planner to make the pages personally satisfying.
Also written or said as 다이어리 꾸미기, dakku
2. The nuance
The focus is decoration and personal expression, not perfect productivity. It can be minimal or elaborate and does not require buying a large stationery collection.
3. Examples
“오늘 있었던 일을 적고 스티커로 다꾸했어.”
I wrote about my day and decorated the diary page with stickers.
“다꾸 색을 두 가지로 줄이니 페이지가 깔끔해졌어.”
Limiting my diary decorations to two colors made the page look cleaner.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.